./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-context1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD --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 a6c10414fe2617d00008bf9d366bc6ac1618cf93ea0f6ae08bc6c5a126364bce .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:49:08,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:49:08,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:49:08,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:49:08,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:49:08,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:49:08,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:49:08,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:49:08,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:49:08,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:49:08,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:49:08,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:49:08,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:49:08,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:49:08,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:49:08,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:49:08,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:49:08,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:49:08,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:49:08,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:49:08,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:49:08,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:49:08,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:49:08,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:49:08,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:49:08,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:49:08,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:49:08,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:49:08,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:49:08,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:49:08,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:49:08,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:49:08,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:49:08,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:49:08,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:49:08,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:49:08,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:49:08,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:49:08,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:49:08,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:49:08,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:49:08,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:49:08,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:49:08,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:49:08,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:49:08,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:49:08,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:49:08,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:49:08,758 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:49:08,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:49:08,759 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:49:08,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:49:08,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:49:08,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:49:08,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:49:08,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:49:08,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:49:08,761 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:49:08,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:49:08,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:49:08,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:49:08,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:49:08,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:49:08,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:49:08,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:49:08,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:49:08,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:49:08,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:49:08,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:49:08,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:49:08,765 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:49:08,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:49:08,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:49:08,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:49:08,766 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_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6c10414fe2617d00008bf9d366bc6ac1618cf93ea0f6ae08bc6c5a126364bce [2021-10-28 23:49:09,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:49:09,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:49:09,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:49:09,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:49:09,191 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:49:09,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/test-context1.wvr.c [2021-10-28 23:49:09,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/data/a219a04c1/5cbf4386941c4aeebb2a0d815c1b7296/FLAG9397c0ba3 [2021-10-28 23:49:09,912 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:49:09,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/sv-benchmarks/c/weaver/test-context1.wvr.c [2021-10-28 23:49:09,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/data/a219a04c1/5cbf4386941c4aeebb2a0d815c1b7296/FLAG9397c0ba3 [2021-10-28 23:49:10,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/data/a219a04c1/5cbf4386941c4aeebb2a0d815c1b7296 [2021-10-28 23:49:10,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:49:10,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:49:10,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:10,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:49:10,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:49:10,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcba941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10, skipping insertion in model container [2021-10-28 23:49:10,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:49:10,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:49:10,573 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_4d8a82f8-8705-4746-b636-89efd1607f93/sv-benchmarks/c/weaver/test-context1.wvr.c[2433,2446] [2021-10-28 23:49:10,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:10,594 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:49:10,622 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_4d8a82f8-8705-4746-b636-89efd1607f93/sv-benchmarks/c/weaver/test-context1.wvr.c[2433,2446] [2021-10-28 23:49:10,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:10,645 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:49:10,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10 WrapperNode [2021-10-28 23:49:10,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:10,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:49:10,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:49:10,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:49:10,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:49:10,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:49:10,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:49:10,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:49:10,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:49:10,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:49:10,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:49:10,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:49:10,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (1/1) ... [2021-10-28 23:49:10,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:49:10,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:10,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:10,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:49:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:49:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:49:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:49:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:49:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:49:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:49:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:49:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:49:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:49:10,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:49:10,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:49:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:49:10,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:49:10,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:49:10,878 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:49:11,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:49:11,666 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-10-28 23:49:11,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:11 BoogieIcfgContainer [2021-10-28 23:49:11,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:49:11,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:49:11,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:49:11,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:49:11,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:49:10" (1/3) ... [2021-10-28 23:49:11,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f70a566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:49:11, skipping insertion in model container [2021-10-28 23:49:11,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:10" (2/3) ... [2021-10-28 23:49:11,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f70a566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:49:11, skipping insertion in model container [2021-10-28 23:49:11,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:11" (3/3) ... [2021-10-28 23:49:11,689 INFO L111 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2021-10-28 23:49:11,699 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:49:11,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:49:11,699 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:49:11,700 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:49:11,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,778 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,779 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,779 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,779 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,801 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,804 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,813 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:11,824 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-28 23:49:11,917 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:49:11,929 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 [2021-10-28 23:49:11,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:49:11,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 104 transitions, 224 flow [2021-10-28 23:49:12,066 INFO L129 PetriNetUnfolder]: 9/102 cut-off events. [2021-10-28 23:49:12,067 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 23:49:12,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 102 events. 9/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2021-10-28 23:49:12,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 104 transitions, 224 flow [2021-10-28 23:49:12,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 94 transitions, 200 flow [2021-10-28 23:49:12,129 INFO L129 PetriNetUnfolder]: 9/93 cut-off events. [2021-10-28 23:49:12,130 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 23:49:12,130 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:12,131 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] [2021-10-28 23:49:12,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:49:12,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:12,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2012417768, now seen corresponding path program 1 times [2021-10-28 23:49:12,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:12,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612768191] [2021-10-28 23:49:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:12,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:12,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:12,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612768191] [2021-10-28 23:49:12,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612768191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:12,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:12,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:49:12,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158172748] [2021-10-28 23:49:12,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:49:12,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:12,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:49:12,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:49:12,589 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 104 [2021-10-28 23:49:12,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 94 transitions, 200 flow. Second operand has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:12,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:12,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 104 [2021-10-28 23:49:12,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:12,679 INFO L129 PetriNetUnfolder]: 3/88 cut-off events. [2021-10-28 23:49:12,685 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 23:49:12,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 3/88 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 6/88 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2021-10-28 23:49:12,688 INFO L132 encePairwiseOnDemand]: 98/104 looper letters, 0 selfloop transitions, 0 changer transitions 3/88 dead transitions. [2021-10-28 23:49:12,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 88 transitions, 188 flow [2021-10-28 23:49:12,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:49:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 23:49:12,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 200 transitions. [2021-10-28 23:49:12,707 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9615384615384616 [2021-10-28 23:49:12,708 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 200 transitions. [2021-10-28 23:49:12,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 200 transitions. [2021-10-28 23:49:12,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:12,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 200 transitions. [2021-10-28 23:49:12,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:12,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:12,736 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:12,739 INFO L186 Difference]: Start difference. First operand has 92 places, 94 transitions, 200 flow. Second operand 2 states and 200 transitions. [2021-10-28 23:49:12,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 88 transitions, 188 flow [2021-10-28 23:49:12,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 180 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 23:49:12,758 INFO L242 Difference]: Finished difference. Result has 89 places, 85 transitions, 174 flow [2021-10-28 23:49:12,761 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=174, PETRI_PLACES=89, PETRI_TRANSITIONS=85} [2021-10-28 23:49:12,762 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2021-10-28 23:49:12,764 INFO L470 AbstractCegarLoop]: Abstraction has has 89 places, 85 transitions, 174 flow [2021-10-28 23:49:12,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:12,765 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:12,765 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] [2021-10-28 23:49:12,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:49:12,766 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:49:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash 270383250, now seen corresponding path program 1 times [2021-10-28 23:49:12,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:12,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281358902] [2021-10-28 23:49:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:12,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:13,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:13,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:13,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281358902] [2021-10-28 23:49:13,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281358902] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:13,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:13,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:49:13,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595302947] [2021-10-28 23:49:13,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:49:13,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:13,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:49:13,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:49:13,203 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 104 [2021-10-28 23:49:13,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:13,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 104 [2021-10-28 23:49:13,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:13,334 INFO L129 PetriNetUnfolder]: 3/97 cut-off events. [2021-10-28 23:49:13,342 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:49:13,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 97 events. 3/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 118. Up to 9 conditions per place. [2021-10-28 23:49:13,344 INFO L132 encePairwiseOnDemand]: 99/104 looper letters, 14 selfloop transitions, 2 changer transitions 3/89 dead transitions. [2021-10-28 23:49:13,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 89 transitions, 220 flow [2021-10-28 23:49:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:49:13,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:49:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2021-10-28 23:49:13,351 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7980769230769231 [2021-10-28 23:49:13,351 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2021-10-28 23:49:13,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2021-10-28 23:49:13,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:13,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2021-10-28 23:49:13,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,360 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,360 INFO L186 Difference]: Start difference. First operand has 89 places, 85 transitions, 174 flow. Second operand 5 states and 415 transitions. [2021-10-28 23:49:13,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 89 transitions, 220 flow [2021-10-28 23:49:13,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 89 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 23:49:13,365 INFO L242 Difference]: Finished difference. Result has 93 places, 86 transitions, 190 flow [2021-10-28 23:49:13,366 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2021-10-28 23:49:13,367 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 1 predicate places. [2021-10-28 23:49:13,372 INFO L470 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 190 flow [2021-10-28 23:49:13,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,374 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:13,374 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] [2021-10-28 23:49:13,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:49:13,375 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:49:13,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2100222084, now seen corresponding path program 1 times [2021-10-28 23:49:13,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:13,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356381348] [2021-10-28 23:49:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:13,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:13,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:13,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356381348] [2021-10-28 23:49:13,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356381348] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:13,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:13,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:49:13,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795108340] [2021-10-28 23:49:13,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:49:13,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:13,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:49:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:49:13,552 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 104 [2021-10-28 23:49:13,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:13,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 104 [2021-10-28 23:49:13,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:13,611 INFO L129 PetriNetUnfolder]: 4/107 cut-off events. [2021-10-28 23:49:13,612 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:49:13,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 107 events. 4/107 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 122. Up to 6 conditions per place. [2021-10-28 23:49:13,614 INFO L132 encePairwiseOnDemand]: 101/104 looper letters, 3 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2021-10-28 23:49:13,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 87 transitions, 202 flow [2021-10-28 23:49:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:49:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 23:49:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2021-10-28 23:49:13,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9198717948717948 [2021-10-28 23:49:13,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2021-10-28 23:49:13,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2021-10-28 23:49:13,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:13,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2021-10-28 23:49:13,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,626 INFO L186 Difference]: Start difference. First operand has 93 places, 86 transitions, 190 flow. Second operand 3 states and 287 transitions. [2021-10-28 23:49:13,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 87 transitions, 202 flow [2021-10-28 23:49:13,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 196 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-10-28 23:49:13,645 INFO L242 Difference]: Finished difference. Result has 91 places, 87 transitions, 196 flow [2021-10-28 23:49:13,646 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2021-10-28 23:49:13,646 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -1 predicate places. [2021-10-28 23:49:13,647 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 196 flow [2021-10-28 23:49:13,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,648 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:13,648 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] [2021-10-28 23:49:13,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:49:13,653 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:49:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:13,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2053722588, now seen corresponding path program 1 times [2021-10-28 23:49:13,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:13,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9069150] [2021-10-28 23:49:13,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:13,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:49:13,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:13,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9069150] [2021-10-28 23:49:13,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9069150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:13,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:13,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:49:13,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633192273] [2021-10-28 23:49:13,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:49:13,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:49:13,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:49:13,996 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 104 [2021-10-28 23:49:13,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 196 flow. Second operand has 8 states, 8 states have (on average 80.75) internal successors, (646), 8 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:13,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 104 [2021-10-28 23:49:13,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:14,213 INFO L129 PetriNetUnfolder]: 4/148 cut-off events. [2021-10-28 23:49:14,214 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2021-10-28 23:49:14,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 148 events. 4/148 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 270 event pairs, 0 based on Foata normal form. 2/140 useless extension candidates. Maximal degree in co-relation 188. Up to 10 conditions per place. [2021-10-28 23:49:14,217 INFO L132 encePairwiseOnDemand]: 93/104 looper letters, 15 selfloop transitions, 10 changer transitions 1/93 dead transitions. [2021-10-28 23:49:14,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 93 transitions, 262 flow [2021-10-28 23:49:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:49:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:49:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 738 transitions. [2021-10-28 23:49:14,224 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7884615384615384 [2021-10-28 23:49:14,224 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 738 transitions. [2021-10-28 23:49:14,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 738 transitions. [2021-10-28 23:49:14,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:14,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 738 transitions. [2021-10-28 23:49:14,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,237 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,237 INFO L186 Difference]: Start difference. First operand has 91 places, 87 transitions, 196 flow. Second operand 9 states and 738 transitions. [2021-10-28 23:49:14,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 93 transitions, 262 flow [2021-10-28 23:49:14,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 93 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:49:14,243 INFO L242 Difference]: Finished difference. Result has 99 places, 88 transitions, 222 flow [2021-10-28 23:49:14,244 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2021-10-28 23:49:14,244 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 7 predicate places. [2021-10-28 23:49:14,245 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 222 flow [2021-10-28 23:49:14,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.75) internal successors, (646), 8 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,246 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:14,247 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] [2021-10-28 23:49:14,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:49:14,247 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:49:14,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:14,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1412319349, now seen corresponding path program 1 times [2021-10-28 23:49:14,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:14,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910877160] [2021-10-28 23:49:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:14,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:49:14,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:14,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910877160] [2021-10-28 23:49:14,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910877160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:14,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:14,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:49:14,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445230158] [2021-10-28 23:49:14,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:49:14,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:14,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:49:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:49:14,491 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 104 [2021-10-28 23:49:14,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:14,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 104 [2021-10-28 23:49:14,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:14,561 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-10-28 23:49:14,561 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:49:14,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 36 events. 0/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-28 23:49:14,562 INFO L132 encePairwiseOnDemand]: 99/104 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2021-10-28 23:49:14,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 36 transitions, 115 flow [2021-10-28 23:49:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:49:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:49:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2021-10-28 23:49:14,566 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7227564102564102 [2021-10-28 23:49:14,567 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 451 transitions. [2021-10-28 23:49:14,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 451 transitions. [2021-10-28 23:49:14,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:14,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 451 transitions. [2021-10-28 23:49:14,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,576 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,576 INFO L186 Difference]: Start difference. First operand has 99 places, 88 transitions, 222 flow. Second operand 6 states and 451 transitions. [2021-10-28 23:49:14,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 36 transitions, 115 flow [2021-10-28 23:49:14,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 36 transitions, 99 flow, removed 0 selfloop flow, removed 9 redundant places. [2021-10-28 23:49:14,580 INFO L242 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2021-10-28 23:49:14,580 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2021-10-28 23:49:14,581 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -46 predicate places. [2021-10-28 23:49:14,581 INFO L470 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2021-10-28 23:49:14,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:14,585 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:49:14,586 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:49:14,586 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:49:14,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:49:14,597 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-28 23:49:14,603 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:49:14,603 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:49:14,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:49:14 BasicIcfg [2021-10-28 23:49:14,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:49:14,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:49:14,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:49:14,609 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:49:14,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:11" (3/4) ... [2021-10-28 23:49:14,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:49:14,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:49:14,621 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:49:14,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-28 23:49:14,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:49:14,627 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:49:14,627 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:49:14,677 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:49:14,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:49:14,679 INFO L168 Benchmark]: Toolchain (without parser) took 4461.42 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 91.5 MB in the beginning and 99.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:14,679 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 127.9 MB. Free memory was 100.9 MB in the beginning and 100.9 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:49:14,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.60 ms. Allocated memory is still 127.9 MB. Free memory was 91.5 MB in the beginning and 100.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:14,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.29 ms. Allocated memory is still 127.9 MB. Free memory was 100.7 MB in the beginning and 99.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:14,681 INFO L168 Benchmark]: Boogie Preprocessor took 37.90 ms. Allocated memory is still 127.9 MB. Free memory was 99.0 MB in the beginning and 97.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:14,682 INFO L168 Benchmark]: RCFGBuilder took 923.21 ms. Allocated memory is still 127.9 MB. Free memory was 97.3 MB in the beginning and 77.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:14,682 INFO L168 Benchmark]: TraceAbstraction took 2934.67 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 76.8 MB in the beginning and 101.8 MB in the end (delta: -25.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:14,683 INFO L168 Benchmark]: Witness Printer took 68.08 ms. Allocated memory is still 155.2 MB. Free memory was 101.8 MB in the beginning and 99.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:14,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 127.9 MB. Free memory was 100.9 MB in the beginning and 100.9 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.60 ms. Allocated memory is still 127.9 MB. Free memory was 91.5 MB in the beginning and 100.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.29 ms. Allocated memory is still 127.9 MB. Free memory was 100.7 MB in the beginning and 99.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.90 ms. Allocated memory is still 127.9 MB. Free memory was 99.0 MB in the beginning and 97.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 923.21 ms. Allocated memory is still 127.9 MB. Free memory was 97.3 MB in the beginning and 77.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2934.67 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 76.8 MB in the beginning and 101.8 MB in the end (delta: -25.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Witness Printer took 68.08 ms. Allocated memory is still 155.2 MB. Free memory was 101.8 MB in the beginning and 99.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 85]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 44 SDslu, 26 SDs, 0 SdLazy, 103 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 375 ConstructedInterpolants, 0 QuantifiedInterpolants, 909 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:49:14,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8a82f8-8705-4746-b636-89efd1607f93/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...