./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8 --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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:39:10,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:39:10,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:39:10,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:39:10,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:39:10,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:39:10,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:39:10,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:39:10,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:39:10,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:39:10,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:39:10,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:39:10,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:39:10,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:39:10,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:39:10,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:39:10,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:39:10,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:39:10,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:39:10,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:39:10,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:39:10,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:39:10,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:39:10,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:39:10,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:39:10,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:39:10,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:39:10,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:39:10,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:39:10,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:39:10,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:39:10,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:39:10,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:39:10,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:39:10,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:39:10,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:39:10,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:39:10,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:39:10,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:39:10,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:39:10,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:39:10,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:39:10,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:39:10,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:39:10,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:39:10,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:39:10,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:39:10,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:39:10,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:39:10,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:39:10,756 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:39:10,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:39:10,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:39:10,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:39:10,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:39:10,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:39:10,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:39:10,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:39:10,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:39:10,760 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:39:10,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:39:10,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:39:10,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:39:10,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:39:10,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:39:10,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:39:10,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:39:10,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:39:10,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:39:10,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:39:10,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:39:10,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:39:10,765 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:39:10,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:39:10,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:39:10,766 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_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2022-11-16 12:39:11,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:39:11,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:39:11,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:39:11,099 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:39:11,100 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:39:11,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-11-16 12:39:11,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/data/8a235df41/7730fb1a972344fb8f74dabc7440ec41/FLAG33dae1ad7 [2022-11-16 12:39:11,728 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:39:11,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-11-16 12:39:11,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/data/8a235df41/7730fb1a972344fb8f74dabc7440ec41/FLAG33dae1ad7 [2022-11-16 12:39:11,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/data/8a235df41/7730fb1a972344fb8f74dabc7440ec41 [2022-11-16 12:39:11,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:39:12,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:39:12,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:39:12,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:39:12,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:39:12,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:11" (1/1) ... [2022-11-16 12:39:12,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65116df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12, skipping insertion in model container [2022-11-16 12:39:12,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:11" (1/1) ... [2022-11-16 12:39:12,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:39:12,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:39:12,267 WARN L229 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_cd199e93-0bf6-4565-ad90-7c0d836c3dee/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2022-11-16 12:39:12,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:39:12,448 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:39:12,463 WARN L229 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_cd199e93-0bf6-4565-ad90-7c0d836c3dee/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2022-11-16 12:39:12,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:39:12,563 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:39:12,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12 WrapperNode [2022-11-16 12:39:12,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:39:12,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:39:12,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:39:12,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:39:12,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,643 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2022-11-16 12:39:12,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:39:12,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:39:12,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:39:12,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:39:12,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,682 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:39:12,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:39:12,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:39:12,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:39:12,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (1/1) ... [2022-11-16 12:39:12,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:39:12,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:12,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:39:12,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:39:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:39:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:39:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:39:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:39:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:39:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:39:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:39:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:39:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:39:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:39:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:39:12,782 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:39:12,936 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:39:12,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:39:13,246 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:39:13,255 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:39:13,255 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:39:13,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:13 BoogieIcfgContainer [2022-11-16 12:39:13,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:39:13,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:39:13,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:39:13,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:39:13,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:39:11" (1/3) ... [2022-11-16 12:39:13,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd69e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:13, skipping insertion in model container [2022-11-16 12:39:13,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:12" (2/3) ... [2022-11-16 12:39:13,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd69e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:13, skipping insertion in model container [2022-11-16 12:39:13,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:13" (3/3) ... [2022-11-16 12:39:13,266 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2022-11-16 12:39:13,275 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:39:13,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:39:13,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 12:39:13,286 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:39:13,378 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:39:13,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 143 transitions, 294 flow [2022-11-16 12:39:13,517 INFO L130 PetriNetUnfolder]: 4/142 cut-off events. [2022-11-16 12:39:13,522 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:39:13,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 142 events. 4/142 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-11-16 12:39:13,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 143 transitions, 294 flow [2022-11-16 12:39:13,543 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 127 transitions, 257 flow [2022-11-16 12:39:13,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:39:13,576 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74116818, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:39:13,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-16 12:39:13,633 INFO L130 PetriNetUnfolder]: 0/64 cut-off events. [2022-11-16 12:39:13,633 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:39:13,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:13,634 INFO L209 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] [2022-11-16 12:39:13,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:13,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:13,640 INFO L85 PathProgramCache]: Analyzing trace with hash -540347201, now seen corresponding path program 1 times [2022-11-16 12:39:13,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:13,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423400023] [2022-11-16 12:39:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:13,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:14,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:14,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423400023] [2022-11-16 12:39:14,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423400023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:14,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:14,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:39:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753784087] [2022-11-16 12:39:14,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:14,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:39:14,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:14,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:39:14,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:39:14,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2022-11-16 12:39:14,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 257 flow. Second operand has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:14,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:14,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2022-11-16 12:39:14,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:14,664 INFO L130 PetriNetUnfolder]: 89/691 cut-off events. [2022-11-16 12:39:14,664 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:39:14,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 691 events. 89/691 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3808 event pairs, 23 based on Foata normal form. 16/692 useless extension candidates. Maximal degree in co-relation 866. Up to 72 conditions per place. [2022-11-16 12:39:14,675 INFO L137 encePairwiseOnDemand]: 122/143 looper letters, 35 selfloop transitions, 23 changer transitions 5/159 dead transitions. [2022-11-16 12:39:14,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 159 transitions, 447 flow [2022-11-16 12:39:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:39:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1045 transitions. [2022-11-16 12:39:14,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.811965811965812 [2022-11-16 12:39:14,701 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1045 transitions. [2022-11-16 12:39:14,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1045 transitions. [2022-11-16 12:39:14,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:14,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1045 transitions. [2022-11-16 12:39:14,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 116.11111111111111) internal successors, (1045), 9 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:14,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:14,729 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:14,732 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 257 flow. Second operand 9 states and 1045 transitions. [2022-11-16 12:39:14,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 159 transitions, 447 flow [2022-11-16 12:39:14,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 159 transitions, 446 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:39:14,741 INFO L231 Difference]: Finished difference. Result has 139 places, 138 transitions, 393 flow [2022-11-16 12:39:14,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=393, PETRI_PLACES=139, PETRI_TRANSITIONS=138} [2022-11-16 12:39:14,749 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2022-11-16 12:39:14,749 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 138 transitions, 393 flow [2022-11-16 12:39:14,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:14,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:14,751 INFO L209 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] [2022-11-16 12:39:14,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:39:14,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:14,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1331370436, now seen corresponding path program 1 times [2022-11-16 12:39:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:14,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750586062] [2022-11-16 12:39:14,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:14,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:15,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:15,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750586062] [2022-11-16 12:39:15,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750586062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:15,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:15,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:39:15,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366821667] [2022-11-16 12:39:15,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:15,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:39:15,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 143 [2022-11-16 12:39:15,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 138 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:15,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:15,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 143 [2022-11-16 12:39:15,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:15,494 INFO L130 PetriNetUnfolder]: 67/542 cut-off events. [2022-11-16 12:39:15,494 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-11-16 12:39:15,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 542 events. 67/542 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2516 event pairs, 28 based on Foata normal form. 13/547 useless extension candidates. Maximal degree in co-relation 836. Up to 124 conditions per place. [2022-11-16 12:39:15,502 INFO L137 encePairwiseOnDemand]: 136/143 looper letters, 43 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2022-11-16 12:39:15,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 146 transitions, 483 flow [2022-11-16 12:39:15,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 537 transitions. [2022-11-16 12:39:15,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7510489510489511 [2022-11-16 12:39:15,504 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 537 transitions. [2022-11-16 12:39:15,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 537 transitions. [2022-11-16 12:39:15,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:15,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 537 transitions. [2022-11-16 12:39:15,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:15,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:15,509 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:15,509 INFO L175 Difference]: Start difference. First operand has 139 places, 138 transitions, 393 flow. Second operand 5 states and 537 transitions. [2022-11-16 12:39:15,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 146 transitions, 483 flow [2022-11-16 12:39:15,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 146 transitions, 465 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:15,520 INFO L231 Difference]: Finished difference. Result has 139 places, 133 transitions, 362 flow [2022-11-16 12:39:15,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=139, PETRI_TRANSITIONS=133} [2022-11-16 12:39:15,521 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2022-11-16 12:39:15,521 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 133 transitions, 362 flow [2022-11-16 12:39:15,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:15,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:15,522 INFO L209 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] [2022-11-16 12:39:15,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:39:15,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:15,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:15,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1692798663, now seen corresponding path program 1 times [2022-11-16 12:39:15,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:15,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135639275] [2022-11-16 12:39:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:15,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:15,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:15,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:15,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135639275] [2022-11-16 12:39:15,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135639275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:15,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:15,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:39:15,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128992332] [2022-11-16 12:39:15,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:15,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:39:15,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:15,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:39:15,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:39:15,807 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 143 [2022-11-16 12:39:15,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 133 transitions, 362 flow. Second operand has 8 states, 8 states have (on average 107.5) internal successors, (860), 8 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:15,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:15,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 143 [2022-11-16 12:39:15,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:16,127 INFO L130 PetriNetUnfolder]: 20/344 cut-off events. [2022-11-16 12:39:16,128 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-16 12:39:16,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 344 events. 20/344 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1052 event pairs, 1 based on Foata normal form. 8/352 useless extension candidates. Maximal degree in co-relation 494. Up to 23 conditions per place. [2022-11-16 12:39:16,130 INFO L137 encePairwiseOnDemand]: 123/143 looper letters, 22 selfloop transitions, 31 changer transitions 10/156 dead transitions. [2022-11-16 12:39:16,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 554 flow [2022-11-16 12:39:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:39:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:39:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1965 transitions. [2022-11-16 12:39:16,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7634032634032634 [2022-11-16 12:39:16,135 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1965 transitions. [2022-11-16 12:39:16,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1965 transitions. [2022-11-16 12:39:16,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:16,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1965 transitions. [2022-11-16 12:39:16,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 109.16666666666667) internal successors, (1965), 18 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 143.0) internal successors, (2717), 19 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,151 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 143.0) internal successors, (2717), 19 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,151 INFO L175 Difference]: Start difference. First operand has 139 places, 133 transitions, 362 flow. Second operand 18 states and 1965 transitions. [2022-11-16 12:39:16,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 554 flow [2022-11-16 12:39:16,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 156 transitions, 547 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:16,161 INFO L231 Difference]: Finished difference. Result has 155 places, 136 transitions, 465 flow [2022-11-16 12:39:16,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=465, PETRI_PLACES=155, PETRI_TRANSITIONS=136} [2022-11-16 12:39:16,163 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 27 predicate places. [2022-11-16 12:39:16,164 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 136 transitions, 465 flow [2022-11-16 12:39:16,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.5) internal successors, (860), 8 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:16,165 INFO L209 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] [2022-11-16 12:39:16,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:39:16,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:16,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:16,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1125526659, now seen corresponding path program 1 times [2022-11-16 12:39:16,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:16,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081183292] [2022-11-16 12:39:16,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:16,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:16,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:16,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081183292] [2022-11-16 12:39:16,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081183292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:16,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:16,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:39:16,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279544197] [2022-11-16 12:39:16,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:16,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:39:16,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:39:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:39:16,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2022-11-16 12:39:16,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 136 transitions, 465 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:16,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2022-11-16 12:39:16,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:16,547 INFO L130 PetriNetUnfolder]: 65/535 cut-off events. [2022-11-16 12:39:16,547 INFO L131 PetriNetUnfolder]: For 306/307 co-relation queries the response was YES. [2022-11-16 12:39:16,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 535 events. 65/535 cut-off events. For 306/307 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2412 event pairs, 13 based on Foata normal form. 7/538 useless extension candidates. Maximal degree in co-relation 959. Up to 75 conditions per place. [2022-11-16 12:39:16,550 INFO L137 encePairwiseOnDemand]: 132/143 looper letters, 28 selfloop transitions, 23 changer transitions 12/164 dead transitions. [2022-11-16 12:39:16,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 164 transitions, 709 flow [2022-11-16 12:39:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:39:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1025 transitions. [2022-11-16 12:39:16,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7964257964257965 [2022-11-16 12:39:16,554 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1025 transitions. [2022-11-16 12:39:16,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1025 transitions. [2022-11-16 12:39:16,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:16,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1025 transitions. [2022-11-16 12:39:16,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,561 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,561 INFO L175 Difference]: Start difference. First operand has 155 places, 136 transitions, 465 flow. Second operand 9 states and 1025 transitions. [2022-11-16 12:39:16,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 164 transitions, 709 flow [2022-11-16 12:39:16,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 164 transitions, 628 flow, removed 8 selfloop flow, removed 11 redundant places. [2022-11-16 12:39:16,573 INFO L231 Difference]: Finished difference. Result has 155 places, 142 transitions, 511 flow [2022-11-16 12:39:16,574 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=511, PETRI_PLACES=155, PETRI_TRANSITIONS=142} [2022-11-16 12:39:16,579 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 27 predicate places. [2022-11-16 12:39:16,579 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 142 transitions, 511 flow [2022-11-16 12:39:16,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:16,581 INFO L209 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] [2022-11-16 12:39:16,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:39:16,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash 352950532, now seen corresponding path program 1 times [2022-11-16 12:39:16,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:16,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93001534] [2022-11-16 12:39:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:16,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:17,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:17,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:17,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93001534] [2022-11-16 12:39:17,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93001534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:17,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:17,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:39:17,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82951493] [2022-11-16 12:39:17,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:17,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:39:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:17,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:39:17,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:39:17,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 143 [2022-11-16 12:39:17,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 142 transitions, 511 flow. Second operand has 8 states, 8 states have (on average 94.875) internal successors, (759), 8 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:17,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 143 [2022-11-16 12:39:17,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:17,545 INFO L130 PetriNetUnfolder]: 45/380 cut-off events. [2022-11-16 12:39:17,545 INFO L131 PetriNetUnfolder]: For 100/101 co-relation queries the response was YES. [2022-11-16 12:39:17,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 380 events. 45/380 cut-off events. For 100/101 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1472 event pairs, 24 based on Foata normal form. 2/379 useless extension candidates. Maximal degree in co-relation 695. Up to 121 conditions per place. [2022-11-16 12:39:17,548 INFO L137 encePairwiseOnDemand]: 137/143 looper letters, 38 selfloop transitions, 6 changer transitions 16/131 dead transitions. [2022-11-16 12:39:17,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 131 transitions, 512 flow [2022-11-16 12:39:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:39:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:39:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2022-11-16 12:39:17,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2022-11-16 12:39:17,551 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2022-11-16 12:39:17,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2022-11-16 12:39:17,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:17,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2022-11-16 12:39:17,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,555 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,555 INFO L175 Difference]: Start difference. First operand has 155 places, 142 transitions, 511 flow. Second operand 6 states and 594 transitions. [2022-11-16 12:39:17,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 131 transitions, 512 flow [2022-11-16 12:39:17,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 131 transitions, 482 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-16 12:39:17,560 INFO L231 Difference]: Finished difference. Result has 140 places, 110 transitions, 316 flow [2022-11-16 12:39:17,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=140, PETRI_TRANSITIONS=110} [2022-11-16 12:39:17,561 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 12 predicate places. [2022-11-16 12:39:17,562 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 110 transitions, 316 flow [2022-11-16 12:39:17,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.875) internal successors, (759), 8 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:17,563 INFO L209 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] [2022-11-16 12:39:17,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:39:17,563 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:17,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1814943194, now seen corresponding path program 1 times [2022-11-16 12:39:17,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:17,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071428061] [2022-11-16 12:39:17,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:17,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:17,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:17,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071428061] [2022-11-16 12:39:17,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071428061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:17,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:17,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:39:17,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606328911] [2022-11-16 12:39:17,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:17,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:17,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:39:17,829 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 143 [2022-11-16 12:39:17,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 110 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:17,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 143 [2022-11-16 12:39:17,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:17,977 INFO L130 PetriNetUnfolder]: 24/328 cut-off events. [2022-11-16 12:39:17,977 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-16 12:39:17,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 328 events. 24/328 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1082 event pairs, 12 based on Foata normal form. 12/340 useless extension candidates. Maximal degree in co-relation 579. Up to 60 conditions per place. [2022-11-16 12:39:17,979 INFO L137 encePairwiseOnDemand]: 127/143 looper letters, 23 selfloop transitions, 16 changer transitions 0/116 dead transitions. [2022-11-16 12:39:17,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 116 transitions, 414 flow [2022-11-16 12:39:17,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:17,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:17,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-11-16 12:39:17,982 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7384615384615385 [2022-11-16 12:39:17,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-11-16 12:39:17,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-11-16 12:39:17,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:17,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-11-16 12:39:17,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,986 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,986 INFO L175 Difference]: Start difference. First operand has 140 places, 110 transitions, 316 flow. Second operand 5 states and 528 transitions. [2022-11-16 12:39:17,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 116 transitions, 414 flow [2022-11-16 12:39:17,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 116 transitions, 361 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-11-16 12:39:17,990 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 326 flow [2022-11-16 12:39:17,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2022-11-16 12:39:17,991 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, -5 predicate places. [2022-11-16 12:39:17,991 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 326 flow [2022-11-16 12:39:17,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:17,992 INFO L209 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] [2022-11-16 12:39:17,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:39:17,993 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:17,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:17,993 INFO L85 PathProgramCache]: Analyzing trace with hash -28793201, now seen corresponding path program 1 times [2022-11-16 12:39:17,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:17,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347653365] [2022-11-16 12:39:17,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:17,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:18,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:18,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347653365] [2022-11-16 12:39:18,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347653365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:18,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:18,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:39:18,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774281849] [2022-11-16 12:39:18,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:18,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:18,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:18,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:18,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:39:18,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 143 [2022-11-16 12:39:18,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:18,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:18,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 143 [2022-11-16 12:39:18,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:18,455 INFO L130 PetriNetUnfolder]: 11/225 cut-off events. [2022-11-16 12:39:18,456 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-16 12:39:18,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 225 events. 11/225 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 498 event pairs, 0 based on Foata normal form. 11/236 useless extension candidates. Maximal degree in co-relation 405. Up to 39 conditions per place. [2022-11-16 12:39:18,457 INFO L137 encePairwiseOnDemand]: 138/143 looper letters, 31 selfloop transitions, 7 changer transitions 2/115 dead transitions. [2022-11-16 12:39:18,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 115 transitions, 413 flow [2022-11-16 12:39:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:18,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 522 transitions. [2022-11-16 12:39:18,459 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.73006993006993 [2022-11-16 12:39:18,460 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 522 transitions. [2022-11-16 12:39:18,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 522 transitions. [2022-11-16 12:39:18,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:18,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 522 transitions. [2022-11-16 12:39:18,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:18,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:18,464 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:18,464 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 326 flow. Second operand 5 states and 522 transitions. [2022-11-16 12:39:18,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 115 transitions, 413 flow [2022-11-16 12:39:18,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 115 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:39:18,468 INFO L231 Difference]: Finished difference. Result has 125 places, 110 transitions, 323 flow [2022-11-16 12:39:18,468 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=125, PETRI_TRANSITIONS=110} [2022-11-16 12:39:18,469 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, -3 predicate places. [2022-11-16 12:39:18,469 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 110 transitions, 323 flow [2022-11-16 12:39:18,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:18,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:18,470 INFO L209 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] [2022-11-16 12:39:18,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:39:18,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 12:39:18,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1653778408, now seen corresponding path program 1 times [2022-11-16 12:39:18,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:18,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265399228] [2022-11-16 12:39:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:18,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:18,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:18,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265399228] [2022-11-16 12:39:18,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265399228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:18,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:18,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:39:18,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412621431] [2022-11-16 12:39:18,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:18,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:39:18,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:39:18,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:39:18,834 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 143 [2022-11-16 12:39:18,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 110 transitions, 323 flow. Second operand has 8 states, 8 states have (on average 108.5) internal successors, (868), 8 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:18,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:18,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 143 [2022-11-16 12:39:18,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:19,031 INFO L130 PetriNetUnfolder]: 4/191 cut-off events. [2022-11-16 12:39:19,031 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-16 12:39:19,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 191 events. 4/191 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 330 event pairs, 1 based on Foata normal form. 2/193 useless extension candidates. Maximal degree in co-relation 335. Up to 19 conditions per place. [2022-11-16 12:39:19,032 INFO L137 encePairwiseOnDemand]: 129/143 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2022-11-16 12:39:19,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 117 transitions, 401 flow [2022-11-16 12:39:19,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:39:19,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 12:39:19,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1726 transitions. [2022-11-16 12:39:19,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7543706293706294 [2022-11-16 12:39:19,037 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1726 transitions. [2022-11-16 12:39:19,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1726 transitions. [2022-11-16 12:39:19,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:19,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1726 transitions. [2022-11-16 12:39:19,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.875) internal successors, (1726), 16 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 143.0) internal successors, (2431), 17 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,048 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 143.0) internal successors, (2431), 17 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,049 INFO L175 Difference]: Start difference. First operand has 125 places, 110 transitions, 323 flow. Second operand 16 states and 1726 transitions. [2022-11-16 12:39:19,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 117 transitions, 401 flow [2022-11-16 12:39:19,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 117 transitions, 389 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-11-16 12:39:19,052 INFO L231 Difference]: Finished difference. Result has 134 places, 0 transitions, 0 flow [2022-11-16 12:39:19,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=134, PETRI_TRANSITIONS=0} [2022-11-16 12:39:19,056 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2022-11-16 12:39:19,056 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 0 transitions, 0 flow [2022-11-16 12:39:19,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.5) internal successors, (868), 8 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-11-16 12:39:19,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-16 12:39:19,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-11-16 12:39:19,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-11-16 12:39:19,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-16 12:39:19,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:39:19,062 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:19,066 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:39:19,067 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:39:19,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:39:19 BasicIcfg [2022-11-16 12:39:19,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:39:19,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:39:19,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:39:19,080 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:39:19,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:13" (3/4) ... [2022-11-16 12:39:19,087 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:39:19,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 12:39:19,101 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-16 12:39:19,101 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:39:19,101 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:39:19,102 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:39:19,147 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:39:19,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:39:19,148 INFO L158 Benchmark]: Toolchain (without parser) took 7147.96ms. Allocated memory was 125.8MB in the beginning and 199.2MB in the end (delta: 73.4MB). Free memory was 83.6MB in the beginning and 141.0MB in the end (delta: -57.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-11-16 12:39:19,148 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:39:19,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.92ms. Allocated memory is still 125.8MB. Free memory was 83.3MB in the beginning and 90.4MB in the end (delta: -7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:39:19,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.42ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 87.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:39:19,149 INFO L158 Benchmark]: Boogie Preprocessor took 40.53ms. Allocated memory is still 125.8MB. Free memory was 87.8MB in the beginning and 86.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:39:19,150 INFO L158 Benchmark]: RCFGBuilder took 570.95ms. Allocated memory is still 125.8MB. Free memory was 86.2MB in the beginning and 70.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 12:39:19,150 INFO L158 Benchmark]: TraceAbstraction took 5819.57ms. Allocated memory was 125.8MB in the beginning and 199.2MB in the end (delta: 73.4MB). Free memory was 69.4MB in the beginning and 144.1MB in the end (delta: -74.7MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-11-16 12:39:19,150 INFO L158 Benchmark]: Witness Printer took 67.50ms. Allocated memory is still 199.2MB. Free memory was 144.1MB in the beginning and 141.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:39:19,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.92ms. Allocated memory is still 125.8MB. Free memory was 83.3MB in the beginning and 90.4MB in the end (delta: -7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.42ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 87.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.53ms. Allocated memory is still 125.8MB. Free memory was 87.8MB in the beginning and 86.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.95ms. Allocated memory is still 125.8MB. Free memory was 86.2MB in the beginning and 70.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5819.57ms. Allocated memory was 125.8MB in the beginning and 199.2MB in the end (delta: 73.4MB). Free memory was 69.4MB in the beginning and 144.1MB in the end (delta: -74.7MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 67.50ms. Allocated memory is still 199.2MB. Free memory was 144.1MB in the beginning and 141.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 175 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 394 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 394 mSDsluCounter, 335 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 231 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 626 IncrementalHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 104 mSDtfsCounter, 626 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=4, InterpolantAutomatonStates: 73, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 633 NumberOfCodeBlocks, 633 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 625 ConstructedInterpolants, 0 QuantifiedInterpolants, 2379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:39:19,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd199e93-0bf6-4565-ad90-7c0d836c3dee/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE