./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- 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-5e519f3 [2022-11-03 02:36:58,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:36:58,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:36:58,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:36:58,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:36:58,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:36:58,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:36:58,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:36:58,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:36:58,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:36:58,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:36:58,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:36:58,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:36:58,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:36:58,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:36:58,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:36:58,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:36:58,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:36:58,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:36:58,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:36:58,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:36:58,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:36:58,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:36:58,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:36:58,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:36:58,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:36:58,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:36:58,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:36:58,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:36:58,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:36:58,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:36:58,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:36:58,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:36:58,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:36:58,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:36:58,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:36:58,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:36:58,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:36:58,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:36:58,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:36:58,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:36:58,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:36:58,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:36:58,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:36:58,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:36:58,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:36:58,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:36:58,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:36:58,802 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:36:58,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:36:58,803 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:36:58,803 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:36:58,803 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:36:58,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:36:58,803 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:36:58,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:36:58,804 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:36:58,804 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:36:58,804 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:36:58,804 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:36:58,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:36:58,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:36:58,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:36:58,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:36:58,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:36:58,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:36:58,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:36:58,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:36:58,806 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:36:58,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:36:58,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:36:58,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:36:58,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:36:58,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:36:58,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:36:58,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:36:58,807 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:36:58,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:36:58,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:36:58,808 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:36:58,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:36:58,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:36:58,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:36:58,809 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_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2022-11-03 02:36:59,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:36:59,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:36:59,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:36:59,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:36:59,099 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:36:59,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2022-11-03 02:36:59,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/data/7cd9a0f33/8955787d94e6480baf2d1be930171c88/FLAG926b89418 [2022-11-03 02:36:59,777 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:36:59,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2022-11-03 02:36:59,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/data/7cd9a0f33/8955787d94e6480baf2d1be930171c88/FLAG926b89418 [2022-11-03 02:37:00,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/data/7cd9a0f33/8955787d94e6480baf2d1be930171c88 [2022-11-03 02:37:00,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:37:00,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:37:00,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:37:00,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:37:00,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:37:00,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4509de11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00, skipping insertion in model container [2022-11-03 02:37:00,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:37:00,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:37:00,379 WARN L230 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_a5131646-911c-4157-acc6-e660c8f7de14/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2022-11-03 02:37:00,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:37:00,481 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:37:00,502 WARN L230 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_a5131646-911c-4157-acc6-e660c8f7de14/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2022-11-03 02:37:00,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:37:00,640 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:37:00,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00 WrapperNode [2022-11-03 02:37:00,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:37:00,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:37:00,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:37:00,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:37:00,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,721 INFO L138 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 281 [2022-11-03 02:37:00,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:37:00,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:37:00,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:37:00,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:37:00,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:37:00,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:37:00,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:37:00,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:37:00,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (1/1) ... [2022-11-03 02:37:00,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:37:00,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:00,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:37:00,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:37:00,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:37:00,869 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:37:00,870 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:37:00,870 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 02:37:00,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 02:37:00,871 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:37:00,871 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:37:00,871 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:37:00,871 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:37:00,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:37:00,872 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:37:00,872 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:37:00,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:37:00,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:37:00,872 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:37:00,873 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 02:37:00,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 02:37:00,873 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 02:37:00,873 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 02:37:00,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:37:00,873 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:37:00,874 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:37:00,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:37:00,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:37:00,986 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:37:00,994 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:37:01,413 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:37:01,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:37:01,560 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:37:01,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:37:01 BoogieIcfgContainer [2022-11-03 02:37:01,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:37:01,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:37:01,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:37:01,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:37:01,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:37:00" (1/3) ... [2022-11-03 02:37:01,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd70f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:37:01, skipping insertion in model container [2022-11-03 02:37:01,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:00" (2/3) ... [2022-11-03 02:37:01,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd70f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:37:01, skipping insertion in model container [2022-11-03 02:37:01,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:37:01" (3/3) ... [2022-11-03 02:37:01,590 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2022-11-03 02:37:01,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:37:01,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:37:01,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:37:01,671 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=FINITE_AUTOMATA, 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;@734db0bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:37:01,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:37:01,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-03 02:37:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:37:01,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:01,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:01,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:01,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:01,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1806156663, now seen corresponding path program 1 times [2022-11-03 02:37:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:01,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393252166] [2022-11-03 02:37:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:01,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:01,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:01,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393252166] [2022-11-03 02:37:01,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393252166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:01,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:01,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:37:01,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776052144] [2022-11-03 02:37:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:37:01,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:01,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:37:01,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:37:01,967 INFO L87 Difference]: Start difference. First operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:02,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:02,084 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2022-11-03 02:37:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:37:02,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 02:37:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:02,099 INFO L225 Difference]: With dead ends: 158 [2022-11-03 02:37:02,100 INFO L226 Difference]: Without dead ends: 75 [2022-11-03 02:37:02,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:37:02,112 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:02,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-03 02:37:02,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-03 02:37:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 56 states have internal predecessors, (62), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 02:37:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2022-11-03 02:37:02,195 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 17 [2022-11-03 02:37:02,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:02,196 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2022-11-03 02:37:02,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:02,197 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2022-11-03 02:37:02,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:37:02,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:02,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:02,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:37:02,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:02,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:02,204 INFO L85 PathProgramCache]: Analyzing trace with hash -869298979, now seen corresponding path program 1 times [2022-11-03 02:37:02,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:02,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143298041] [2022-11-03 02:37:02,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:02,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:02,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:02,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143298041] [2022-11-03 02:37:02,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143298041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:02,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:02,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:02,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372290756] [2022-11-03 02:37:02,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:02,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:02,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:02,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:02,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:02,420 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:02,509 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2022-11-03 02:37:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:02,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 02:37:02,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:02,512 INFO L225 Difference]: With dead ends: 122 [2022-11-03 02:37:02,513 INFO L226 Difference]: Without dead ends: 67 [2022-11-03 02:37:02,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:02,517 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:02,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 129 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:02,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-03 02:37:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-03 02:37:02,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 51 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 02:37:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 88 transitions. [2022-11-03 02:37:02,545 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 88 transitions. Word has length 18 [2022-11-03 02:37:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:02,546 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 88 transitions. [2022-11-03 02:37:02,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2022-11-03 02:37:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:37:02,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:02,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:02,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:37:02,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:02,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:02,551 INFO L85 PathProgramCache]: Analyzing trace with hash 457868229, now seen corresponding path program 1 times [2022-11-03 02:37:02,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:02,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581566148] [2022-11-03 02:37:02,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:02,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:02,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:02,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581566148] [2022-11-03 02:37:02,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581566148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:02,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:02,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:37:02,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181014826] [2022-11-03 02:37:02,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:02,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:37:02,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:37:02,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:37:02,704 INFO L87 Difference]: Start difference. First operand 67 states and 88 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:02,876 INFO L93 Difference]: Finished difference Result 180 states and 242 transitions. [2022-11-03 02:37:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:37:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-03 02:37:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:02,881 INFO L225 Difference]: With dead ends: 180 [2022-11-03 02:37:02,881 INFO L226 Difference]: Without dead ends: 115 [2022-11-03 02:37:02,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:37:02,883 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 102 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:02,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 184 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:02,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-03 02:37:02,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 98. [2022-11-03 02:37:02,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 75 states have internal predecessors, (85), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-03 02:37:02,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 128 transitions. [2022-11-03 02:37:02,905 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 128 transitions. Word has length 21 [2022-11-03 02:37:02,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:02,905 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 128 transitions. [2022-11-03 02:37:02,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:02,905 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 128 transitions. [2022-11-03 02:37:02,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:37:02,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:02,912 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:37:02,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:37:02,914 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:02,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:02,915 INFO L85 PathProgramCache]: Analyzing trace with hash -373252238, now seen corresponding path program 1 times [2022-11-03 02:37:02,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:02,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117508466] [2022-11-03 02:37:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:03,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:03,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117508466] [2022-11-03 02:37:03,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117508466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:03,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:03,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:37:03,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407900101] [2022-11-03 02:37:03,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:03,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:37:03,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:03,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:37:03,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:37:03,105 INFO L87 Difference]: Start difference. First operand 98 states and 128 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:03,297 INFO L93 Difference]: Finished difference Result 286 states and 379 transitions. [2022-11-03 02:37:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:37:03,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-03 02:37:03,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:03,306 INFO L225 Difference]: With dead ends: 286 [2022-11-03 02:37:03,307 INFO L226 Difference]: Without dead ends: 190 [2022-11-03 02:37:03,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:37:03,315 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 63 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:03,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 383 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-03 02:37:03,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 182. [2022-11-03 02:37:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 115 states have (on average 1.3478260869565217) internal successors, (155), 138 states have internal predecessors, (155), 40 states have call successors, (40), 26 states have call predecessors, (40), 26 states have return successors, (42), 28 states have call predecessors, (42), 40 states have call successors, (42) [2022-11-03 02:37:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 237 transitions. [2022-11-03 02:37:03,349 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 237 transitions. Word has length 24 [2022-11-03 02:37:03,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:03,349 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 237 transitions. [2022-11-03 02:37:03,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:37:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 237 transitions. [2022-11-03 02:37:03,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:37:03,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:03,351 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:37:03,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:37:03,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:03,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:03,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1749393350, now seen corresponding path program 1 times [2022-11-03 02:37:03,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:03,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162245657] [2022-11-03 02:37:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:03,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:03,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:03,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162245657] [2022-11-03 02:37:03,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162245657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:03,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:03,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:03,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359100589] [2022-11-03 02:37:03,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:03,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:03,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:03,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:03,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:03,422 INFO L87 Difference]: Start difference. First operand 182 states and 237 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:37:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:03,494 INFO L93 Difference]: Finished difference Result 278 states and 369 transitions. [2022-11-03 02:37:03,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:03,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-03 02:37:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:03,497 INFO L225 Difference]: With dead ends: 278 [2022-11-03 02:37:03,497 INFO L226 Difference]: Without dead ends: 276 [2022-11-03 02:37:03,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:03,498 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 63 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:03,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 158 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:37:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-03 02:37:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-11-03 02:37:03,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 209 states have internal predecessors, (235), 61 states have call successors, (61), 40 states have call predecessors, (61), 40 states have return successors, (70), 43 states have call predecessors, (70), 61 states have call successors, (70) [2022-11-03 02:37:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 366 transitions. [2022-11-03 02:37:03,548 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 366 transitions. Word has length 27 [2022-11-03 02:37:03,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:03,549 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 366 transitions. [2022-11-03 02:37:03,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:37:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 366 transitions. [2022-11-03 02:37:03,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:37:03,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:03,560 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:03,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:37:03,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:03,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2049322337, now seen corresponding path program 1 times [2022-11-03 02:37:03,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:03,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995647030] [2022-11-03 02:37:03,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:03,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:37:03,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:03,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995647030] [2022-11-03 02:37:03,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995647030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:03,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:03,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:37:03,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490150568] [2022-11-03 02:37:03,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:03,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:37:03,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:37:03,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:37:03,828 INFO L87 Difference]: Start difference. First operand 276 states and 366 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:37:04,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:04,182 INFO L93 Difference]: Finished difference Result 735 states and 991 transitions. [2022-11-03 02:37:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:37:04,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2022-11-03 02:37:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:04,187 INFO L225 Difference]: With dead ends: 735 [2022-11-03 02:37:04,188 INFO L226 Difference]: Without dead ends: 461 [2022-11-03 02:37:04,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:37:04,192 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 135 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:04,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 232 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:37:04,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-03 02:37:04,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 439. [2022-11-03 02:37:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 287 states have (on average 1.2334494773519165) internal successors, (354), 313 states have internal predecessors, (354), 75 states have call successors, (75), 63 states have call predecessors, (75), 76 states have return successors, (112), 79 states have call predecessors, (112), 75 states have call successors, (112) [2022-11-03 02:37:04,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 541 transitions. [2022-11-03 02:37:04,278 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 541 transitions. Word has length 47 [2022-11-03 02:37:04,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:04,278 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 541 transitions. [2022-11-03 02:37:04,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:37:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 541 transitions. [2022-11-03 02:37:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 02:37:04,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:04,281 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:04,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:37:04,282 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:04,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash -689848674, now seen corresponding path program 1 times [2022-11-03 02:37:04,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:04,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176323798] [2022-11-03 02:37:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:04,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:04,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:04,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176323798] [2022-11-03 02:37:04,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176323798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:04,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:04,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:37:04,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728865063] [2022-11-03 02:37:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:04,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:37:04,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:04,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:37:04,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:37:04,391 INFO L87 Difference]: Start difference. First operand 439 states and 541 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-03 02:37:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:04,545 INFO L93 Difference]: Finished difference Result 880 states and 1084 transitions. [2022-11-03 02:37:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:37:04,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 82 [2022-11-03 02:37:04,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:04,549 INFO L225 Difference]: With dead ends: 880 [2022-11-03 02:37:04,550 INFO L226 Difference]: Without dead ends: 370 [2022-11-03 02:37:04,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:37:04,552 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 106 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:04,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 150 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:04,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-03 02:37:04,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-03 02:37:04,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 239 states have (on average 1.1924686192468619) internal successors, (285), 259 states have internal predecessors, (285), 64 states have call successors, (64), 52 states have call predecessors, (64), 66 states have return successors, (93), 69 states have call predecessors, (93), 64 states have call successors, (93) [2022-11-03 02:37:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 442 transitions. [2022-11-03 02:37:04,608 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 442 transitions. Word has length 82 [2022-11-03 02:37:04,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:04,608 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 442 transitions. [2022-11-03 02:37:04,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-03 02:37:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 442 transitions. [2022-11-03 02:37:04,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 02:37:04,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:04,612 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:04,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:37:04,612 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:04,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:04,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2101167635, now seen corresponding path program 1 times [2022-11-03 02:37:04,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:04,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274297777] [2022-11-03 02:37:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:04,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:37:05,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:05,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274297777] [2022-11-03 02:37:05,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274297777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:37:05,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125040417] [2022-11-03 02:37:05,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:05,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:05,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:05,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:05,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:37:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:05,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 02:37:05,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:05,846 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:37:05,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:37:06,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125040417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:06,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1875300489] [2022-11-03 02:37:06,838 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-03 02:37:06,838 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:06,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:06,847 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:06,848 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:18,749 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 309 for LOIs [2022-11-03 02:37:20,140 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 306 for LOIs [2022-11-03 02:37:20,576 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 306 for LOIs [2022-11-03 02:37:21,577 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 52 for LOIs [2022-11-03 02:37:21,658 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 26 for LOIs [2022-11-03 02:37:21,660 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 47 for LOIs [2022-11-03 02:37:21,669 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 28 for LOIs [2022-11-03 02:37:21,672 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:41,175 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6791#(and (<= ~cleanupTimeShifts~0 4) (<= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~6#1|) (<= 0 |#NULL.base|) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (<= 0 ~head~0.offset) (<= 1 ~systemActive~0) (<= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) (<= 0 ~methAndRunningLastTime~0) (<= 4 ~cleanupTimeShifts~0) (<= 0 |old(~methAndRunningLastTime~0)|) (<= |old(~methAndRunningLastTime~0)| 1) (<= 0 ~head~0.base) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~6#1|) (<= |#NULL.base| 0) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 1) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 0)) (<= 0 |#NULL.offset|) (not (= ~methAndRunningLastTime~0 0)) (<= ~methAndRunningLastTime~0 1) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0) (<= ~systemActive~0 1))' at error location [2022-11-03 02:37:41,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:41,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:37:41,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 11] total 30 [2022-11-03 02:37:41,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352695335] [2022-11-03 02:37:41,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:41,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 02:37:41,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:41,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 02:37:41,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=4030, Unknown=0, NotChecked=0, Total=4422 [2022-11-03 02:37:41,189 INFO L87 Difference]: Start difference. First operand 370 states and 442 transitions. Second operand has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) [2022-11-03 02:37:46,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:46,378 INFO L93 Difference]: Finished difference Result 1416 states and 1966 transitions. [2022-11-03 02:37:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-11-03 02:37:46,379 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) Word has length 79 [2022-11-03 02:37:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:46,389 INFO L225 Difference]: With dead ends: 1416 [2022-11-03 02:37:46,389 INFO L226 Difference]: Without dead ends: 1004 [2022-11-03 02:37:46,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 195 SyntacticMatches, 10 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6240 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=1465, Invalid=15047, Unknown=0, NotChecked=0, Total=16512 [2022-11-03 02:37:46,397 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1259 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 1007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 4155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:46,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 1051 Invalid, 4155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1007 Valid, 3148 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 02:37:46,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-11-03 02:37:46,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 701. [2022-11-03 02:37:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 452 states have (on average 1.165929203539823) internal successors, (527), 487 states have internal predecessors, (527), 121 states have call successors, (121), 99 states have call predecessors, (121), 127 states have return successors, (177), 132 states have call predecessors, (177), 121 states have call successors, (177) [2022-11-03 02:37:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 825 transitions. [2022-11-03 02:37:46,482 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 825 transitions. Word has length 79 [2022-11-03 02:37:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:46,483 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 825 transitions. [2022-11-03 02:37:46,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) [2022-11-03 02:37:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 825 transitions. [2022-11-03 02:37:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 02:37:46,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:46,486 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:46,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:46,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:46,703 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:46,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1283006198, now seen corresponding path program 1 times [2022-11-03 02:37:46,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:46,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225005895] [2022-11-03 02:37:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:46,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 02:37:47,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:47,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225005895] [2022-11-03 02:37:47,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225005895] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:37:47,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518440274] [2022-11-03 02:37:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:47,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:47,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:47,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:37:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:47,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 02:37:47,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:37:47,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:37:47,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518440274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:47,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:37:47,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-11-03 02:37:47,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140069410] [2022-11-03 02:37:47,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:47,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:37:47,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:47,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:37:47,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:37:47,334 INFO L87 Difference]: Start difference. First operand 701 states and 825 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:37:47,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:47,488 INFO L93 Difference]: Finished difference Result 1175 states and 1427 transitions. [2022-11-03 02:37:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:37:47,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2022-11-03 02:37:47,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:47,493 INFO L225 Difference]: With dead ends: 1175 [2022-11-03 02:37:47,493 INFO L226 Difference]: Without dead ends: 583 [2022-11-03 02:37:47,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:37:47,498 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 52 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:47,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 212 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:47,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-11-03 02:37:47,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 568. [2022-11-03 02:37:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 370 states have (on average 1.1567567567567567) internal successors, (428), 396 states have internal predecessors, (428), 98 states have call successors, (98), 81 states have call predecessors, (98), 99 states have return successors, (132), 107 states have call predecessors, (132), 98 states have call successors, (132) [2022-11-03 02:37:47,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 658 transitions. [2022-11-03 02:37:47,555 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 658 transitions. Word has length 86 [2022-11-03 02:37:47,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:47,555 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 658 transitions. [2022-11-03 02:37:47,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:37:47,555 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 658 transitions. [2022-11-03 02:37:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-03 02:37:47,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:47,564 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:47,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:47,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-03 02:37:47,781 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:47,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1143825443, now seen corresponding path program 1 times [2022-11-03 02:37:47,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:47,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890051057] [2022-11-03 02:37:47,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:47,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-03 02:37:48,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:48,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890051057] [2022-11-03 02:37:48,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890051057] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:37:48,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409818146] [2022-11-03 02:37:48,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:48,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:48,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:48,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:48,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:37:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:48,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 02:37:48,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 02:37:48,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:37:48,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409818146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:48,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:37:48,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 15 [2022-11-03 02:37:48,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530134884] [2022-11-03 02:37:48,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:48,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:37:48,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:48,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:37:48,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:37:48,373 INFO L87 Difference]: Start difference. First operand 568 states and 658 transitions. Second operand has 11 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:37:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:48,853 INFO L93 Difference]: Finished difference Result 1175 states and 1374 transitions. [2022-11-03 02:37:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:37:48,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) Word has length 122 [2022-11-03 02:37:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:48,856 INFO L225 Difference]: With dead ends: 1175 [2022-11-03 02:37:48,856 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:37:48,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-03 02:37:48,859 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 55 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:48,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 422 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:37:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:37:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:37:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:37:48,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 122 [2022-11-03 02:37:48,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:48,862 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:37:48,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:37:48,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:37:48,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:37:48,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:37:48,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 02:37:49,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:49,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:37:53,915 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 521 528) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2022-11-03 02:37:53,915 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 521 528) no Hoare annotation was computed. [2022-11-03 02:37:53,916 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 411 417) no Hoare annotation was computed. [2022-11-03 02:37:53,916 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 411 417) the Hoare annotation is: true [2022-11-03 02:37:53,916 INFO L895 garLoopResultBuilder]: At program point L459(line 459) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-03 02:37:53,919 INFO L895 garLoopResultBuilder]: At program point L455(line 455) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-03 02:37:53,920 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 461) no Hoare annotation was computed. [2022-11-03 02:37:53,922 INFO L895 garLoopResultBuilder]: At program point L449(lines 449 466) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:37:53,924 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 445 469) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:37:53,924 INFO L895 garLoopResultBuilder]: At program point L464(line 464) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or (not .cse0) (= ~pumpRunning~0 0) .cse1 .cse2))) [2022-11-03 02:37:53,925 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 445 469) no Hoare annotation was computed. [2022-11-03 02:37:53,925 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 445 469) no Hoare annotation was computed. [2022-11-03 02:37:53,925 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 237 248) the Hoare annotation is: (or (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:37:53,926 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 237 248) no Hoare annotation was computed. [2022-11-03 02:37:53,926 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 249 257) the Hoare annotation is: true [2022-11-03 02:37:53,927 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 249 257) no Hoare annotation was computed. [2022-11-03 02:37:53,927 INFO L895 garLoopResultBuilder]: At program point L481(line 481) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) .cse1) (or .cse2 .cse0) (or .cse2 (not .cse1)))) [2022-11-03 02:37:53,929 INFO L895 garLoopResultBuilder]: At program point L477(line 477) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)))) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse0)))) [2022-11-03 02:37:53,930 INFO L899 garLoopResultBuilder]: For program point L477-1(line 477) no Hoare annotation was computed. [2022-11-03 02:37:53,930 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 198) no Hoare annotation was computed. [2022-11-03 02:37:53,931 INFO L895 garLoopResultBuilder]: At program point L184(lines 184 201) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0)) (.cse12 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (= ~methAndRunningLastTime~0 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse9 (= ~methaneLevelCritical~0 0)) (.cse11 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse3 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0))) (let ((.cse5 (and .cse12 .cse10 (not .cse6) .cse9 .cse11 .cse3)) (.cse4 (and .cse12 .cse6)) (.cse2 (= 0 ~systemActive~0)) (.cse0 (not .cse7)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse8 (not .cse9))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 (not .cse2)) (or .cse1 .cse5 (and .cse6 .cse3) .cse7 .cse8 .cse2) (or .cse1 .cse5 (and .cse9 (= ~pumpRunning~0 1)) .cse4 .cse2 (and .cse6 .cse10 .cse11)) (or .cse0 .cse1 (and .cse10 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) .cse8)))) [2022-11-03 02:37:53,931 INFO L895 garLoopResultBuilder]: At program point L184-1(lines 176 204) the Hoare annotation is: (let ((.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse9)) (.cse11 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse4 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0)) (.cse12 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (not .cse3)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= 0 ~systemActive~0)) (.cse6 (and .cse12 .cse7 .cse8)) (.cse10 (and .cse12 .cse0 .cse8 .cse3 .cse11 .cse4))) (and (or .cse0 .cse1 .cse2 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (or .cse0 .cse1 .cse3 (and (= ~pumpRunning~0 |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) .cse4) .cse5) (or .cse0 .cse6 (not .cse5)) (or .cse1 (and .cse0 .cse7 .cse8 .cse4) .cse9 .cse2 .cse5 .cse10) (or .cse1 .cse5 .cse6 (and .cse8 .cse3 (= ~pumpRunning~0 1)) (and .cse0 .cse7 .cse8 .cse11) .cse10))))) [2022-11-03 02:37:53,932 INFO L895 garLoopResultBuilder]: At program point L490(line 490) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse0)))) [2022-11-03 02:37:53,932 INFO L895 garLoopResultBuilder]: At program point L490-1(lines 471 495) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse7)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 .cse1 (and .cse2 .cse3 (= ~pumpRunning~0 1)) (and .cse4 .cse2)) (or .cse0 (not .cse5)) (let ((.cse6 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3 .cse6) .cse1 .cse7 .cse5 (and .cse4 .cse2 .cse6)))))) [2022-11-03 02:37:53,932 INFO L899 garLoopResultBuilder]: For program point L391-1(lines 390 409) no Hoare annotation was computed. [2022-11-03 02:37:53,932 INFO L895 garLoopResultBuilder]: At program point L160(line 160) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse0)))) [2022-11-03 02:37:53,932 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 195) no Hoare annotation was computed. [2022-11-03 02:37:53,933 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 487) no Hoare annotation was computed. [2022-11-03 02:37:53,933 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 492) no Hoare annotation was computed. [2022-11-03 02:37:53,933 INFO L895 garLoopResultBuilder]: At program point L182(line 182) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse7)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 .cse1 .cse2 (not .cse3)) (or .cse0 .cse4 (not .cse5)) (or .cse0 .cse1 (and .cse3 (= ~pumpRunning~0 1)) .cse5 (and .cse4 .cse2)) (let ((.cse6 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3 .cse6) .cse1 .cse7 .cse5 (and .cse4 .cse2 .cse6)))))) [2022-11-03 02:37:53,933 INFO L899 garLoopResultBuilder]: For program point L182-1(line 182) no Hoare annotation was computed. [2022-11-03 02:37:53,933 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 387 410) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 0) (not .cse1)) (or .cse0 .cse2 .cse3) (or .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) .cse1))) [2022-11-03 02:37:53,934 INFO L899 garLoopResultBuilder]: For program point L398-1(lines 398 404) no Hoare annotation was computed. [2022-11-03 02:37:53,934 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 387 410) no Hoare annotation was computed. [2022-11-03 02:37:53,934 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2022-11-03 02:37:53,934 INFO L895 garLoopResultBuilder]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse0)))) [2022-11-03 02:37:53,934 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-03 02:37:53,934 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-03 02:37:53,935 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-03 02:37:53,935 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-03 02:37:53,935 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-03 02:37:53,935 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-03 02:37:53,935 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-03 02:37:53,935 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-03 02:37:53,936 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-03 02:37:53,936 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 351) no Hoare annotation was computed. [2022-11-03 02:37:53,936 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 345 351) no Hoare annotation was computed. [2022-11-03 02:37:53,936 INFO L895 garLoopResultBuilder]: At program point L370(lines 325 372) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (not (= 0 ~systemActive~0))))) [2022-11-03 02:37:53,937 INFO L895 garLoopResultBuilder]: At program point L337(line 337) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (not (= 0 ~systemActive~0))))) [2022-11-03 02:37:53,937 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:37:53,937 INFO L899 garLoopResultBuilder]: For program point L627(lines 627 633) no Hoare annotation was computed. [2022-11-03 02:37:53,937 INFO L895 garLoopResultBuilder]: At program point L627-1(lines 627 633) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1))) [2022-11-03 02:37:53,937 INFO L899 garLoopResultBuilder]: For program point L326(lines 325 372) no Hoare annotation was computed. [2022-11-03 02:37:53,937 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 368) no Hoare annotation was computed. [2022-11-03 02:37:53,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:37:53,938 INFO L895 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:37:53,938 INFO L902 garLoopResultBuilder]: At program point L376(lines 315 380) the Hoare annotation is: true [2022-11-03 02:37:53,938 INFO L899 garLoopResultBuilder]: For program point L335(lines 335 341) no Hoare annotation was computed. [2022-11-03 02:37:53,940 INFO L899 garLoopResultBuilder]: For program point L335-1(lines 335 341) no Hoare annotation was computed. [2022-11-03 02:37:53,940 INFO L895 garLoopResultBuilder]: At program point L629(line 629) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-11-03 02:37:53,940 INFO L895 garLoopResultBuilder]: At program point L373(lines 324 374) the Hoare annotation is: false [2022-11-03 02:37:53,940 INFO L895 garLoopResultBuilder]: At program point L142(lines 142 149) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1)) [2022-11-03 02:37:53,941 INFO L902 garLoopResultBuilder]: At program point L142-2(lines 142 149) the Hoare annotation is: true [2022-11-03 02:37:53,941 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 367) no Hoare annotation was computed. [2022-11-03 02:37:53,941 INFO L895 garLoopResultBuilder]: At program point L361-2(lines 355 368) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= 0 ~systemActive~0))) (or (and (= ~methAndRunningLastTime~0 0) .cse0 (not .cse1)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:37:53,942 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 419 443) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:37:53,942 INFO L895 garLoopResultBuilder]: At program point L438(line 438) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-03 02:37:53,942 INFO L899 garLoopResultBuilder]: For program point L438-1(lines 419 443) no Hoare annotation was computed. [2022-11-03 02:37:53,943 INFO L895 garLoopResultBuilder]: At program point L509(line 509) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or (not .cse0) (= ~pumpRunning~0 0) .cse1 .cse2))) [2022-11-03 02:37:53,943 INFO L895 garLoopResultBuilder]: At program point L509-1(line 509) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret19#1|)) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2022-11-03 02:37:53,943 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 419 443) no Hoare annotation was computed. [2022-11-03 02:37:53,943 INFO L895 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or (not .cse0) (= ~pumpRunning~0 0) .cse1 .cse2))) [2022-11-03 02:37:53,943 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 435) no Hoare annotation was computed. [2022-11-03 02:37:53,944 INFO L895 garLoopResultBuilder]: At program point L423(lines 423 440) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:37:53,944 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 225 236) no Hoare annotation was computed. [2022-11-03 02:37:53,944 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 225 236) the Hoare annotation is: true [2022-11-03 02:37:53,944 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 529 539) the Hoare annotation is: true [2022-11-03 02:37:53,944 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 529 539) no Hoare annotation was computed. [2022-11-03 02:37:53,944 INFO L902 garLoopResultBuilder]: At program point L534(line 534) the Hoare annotation is: true [2022-11-03 02:37:53,945 INFO L899 garLoopResultBuilder]: For program point L534-1(line 534) no Hoare annotation was computed. [2022-11-03 02:37:53,948 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:53,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:37:53,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:37:53 BoogieIcfgContainer [2022-11-03 02:37:54,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:37:54,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:37:54,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:37:54,001 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:37:54,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:37:01" (3/4) ... [2022-11-03 02:37:54,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:37:54,011 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 02:37:54,011 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:37:54,011 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:37:54,012 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 02:37:54,012 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:37:54,012 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:37:54,013 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:37:54,013 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:37:54,014 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:37:54,014 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 02:37:54,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges [2022-11-03 02:37:54,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 02:37:54,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 02:37:54,033 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:37:54,033 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:37:54,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:37:54,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:37:54,068 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0)) && ((!(\old(methAndRunningLastTime) == 0) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || 0 == systemActive) [2022-11-03 02:37:54,070 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && (((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) || !(\old(methAndRunningLastTime) == 0)) || \old(pumpRunning) == 0) || 0 == systemActive) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) [2022-11-03 02:37:54,071 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-03 02:37:54,072 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || tmp == methaneLevelCritical) && ((!(\old(pumpRunning) == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || (((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((((!(\old(methAndRunningLastTime) == 0) || (((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || (methaneLevelCritical == 0 && pumpRunning == 1)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) [2022-11-03 02:37:54,072 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-03 02:37:54,073 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || (pumpRunning == tmp___0 && tmp == methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical))) && (((((!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) [2022-11-03 02:37:54,073 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-03 02:37:54,076 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 02:37:54,132 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:37:54,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:37:54,134 INFO L158 Benchmark]: Toolchain (without parser) took 54044.44ms. Allocated memory was 113.2MB in the beginning and 461.4MB in the end (delta: 348.1MB). Free memory was 89.9MB in the beginning and 224.6MB in the end (delta: -134.7MB). Peak memory consumption was 214.0MB. Max. memory is 16.1GB. [2022-11-03 02:37:54,134 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:37:54,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.56ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 77.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 02:37:54,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.01ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 75.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:37:54,135 INFO L158 Benchmark]: Boogie Preprocessor took 65.63ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 73.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:37:54,135 INFO L158 Benchmark]: RCFGBuilder took 774.43ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 73.4MB in the beginning and 124.7MB in the end (delta: -51.3MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2022-11-03 02:37:54,136 INFO L158 Benchmark]: TraceAbstraction took 52431.00ms. Allocated memory was 151.0MB in the beginning and 461.4MB in the end (delta: 310.4MB). Free memory was 124.0MB in the beginning and 230.8MB in the end (delta: -106.9MB). Peak memory consumption was 283.4MB. Max. memory is 16.1GB. [2022-11-03 02:37:54,136 INFO L158 Benchmark]: Witness Printer took 132.23ms. Allocated memory is still 461.4MB. Free memory was 230.8MB in the beginning and 224.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:37:54,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.56ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 77.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.01ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 75.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.63ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 73.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 774.43ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 73.4MB in the beginning and 124.7MB in the end (delta: -51.3MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * TraceAbstraction took 52431.00ms. Allocated memory was 151.0MB in the beginning and 461.4MB in the end (delta: 310.4MB). Free memory was 124.0MB in the beginning and 230.8MB in the end (delta: -106.9MB). Peak memory consumption was 283.4MB. Max. memory is 16.1GB. * Witness Printer took 132.23ms. Allocated memory is still 461.4MB. Free memory was 230.8MB in the beginning and 224.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 160]: 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 CFG has 11 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.3s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1871 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1849 mSDsluCounter, 3008 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2417 mSDsCounter, 1118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4350 IncrementalHoareTripleChecker+Invalid, 5468 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1118 mSolverCounterUnsat, 946 mSDtfsCounter, 4350 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 606 GetRequests, 419 SyntacticMatches, 10 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6290 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=701occurred in iteration=8, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 365 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 1756 PreInvPairs, 1978 NumberOfFragments, 1181 HoareAnnotationTreeSize, 1756 FomulaSimplifications, 3807 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 44 FomulaSimplificationsInter, 20982 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 810 NumberOfCodeBlocks, 810 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 875 ConstructedInterpolants, 0 QuantifiedInterpolants, 2054 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1563 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 418/458 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 471]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && (((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) || !(\old(methAndRunningLastTime) == 0)) || \old(pumpRunning) == 0) || 0 == systemActive) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0)) && ((!(\old(methAndRunningLastTime) == 0) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || 0 == systemActive) - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) || (((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && splverifierCounter == 0) && !(0 == systemActive)) - InvariantResult [Line: 509]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 627]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && !(0 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || tmp == methaneLevelCritical) && ((!(\old(pumpRunning) == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || (((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((((!(\old(methAndRunningLastTime) == 0) || (((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || (methaneLevelCritical == 0 && pumpRunning == 1)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 423]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || (pumpRunning == tmp___0 && tmp == methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical))) && (((((!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-03 02:37:54,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5131646-911c-4157-acc6-e660c8f7de14/bin/utaipan-7li7fVZpFI/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