./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9 --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 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 --- 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-6b4ec56 [2022-11-20 21:04:48,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:04:48,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:04:48,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:04:48,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:04:48,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:04:48,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:04:48,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:04:48,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:04:48,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:04:48,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:04:48,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:04:48,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:04:48,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:04:48,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:04:48,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:04:48,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:04:48,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:04:48,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:04:48,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:04:48,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:04:48,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:04:48,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:04:48,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:04:48,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:04:48,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:04:48,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:04:48,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:04:48,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:04:48,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:04:48,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:04:48,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:04:48,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:04:48,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:04:48,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:04:48,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:04:48,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:04:48,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:04:48,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:04:48,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:04:48,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:04:48,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 21:04:48,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:04:48,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:04:48,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:04:48,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:04:48,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:04:48,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:04:48,803 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:04:48,803 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:04:48,804 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:04:48,804 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:04:48,805 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:04:48,805 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:04:48,806 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:04:48,806 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:04:48,806 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:04:48,807 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:04:48,807 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:04:48,807 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:04:48,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:04:48,808 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:04:48,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:04:48,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:04:48,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:04:48,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:04:48,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:04:48,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:04:48,810 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:04:48,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:04:48,811 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:04:48,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:04:48,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:04:48,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:04:48,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:04:48,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:04:48,813 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:04:48,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:04:48,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:04:48,814 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:04:48,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:04:48,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:04:48,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:04:48,815 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_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2022-11-20 21:04:49,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:04:49,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:04:49,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:04:49,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:04:49,145 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:04:49,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2022-11-20 21:04:52,215 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:04:52,437 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:04:52,438 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2022-11-20 21:04:52,450 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/data/b0b9b1f99/949d8147582b4e67b727635dd862bb39/FLAG734310cd6 [2022-11-20 21:04:52,464 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/data/b0b9b1f99/949d8147582b4e67b727635dd862bb39 [2022-11-20 21:04:52,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:04:52,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:04:52,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:04:52,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:04:52,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:04:52,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:52,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6906ce64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52, skipping insertion in model container [2022-11-20 21:04:52,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:52,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:04:52,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:04:52,806 WARN L237 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_f1a5b52c-5759-4570-9923-7be4281359ef/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2022-11-20 21:04:52,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:04:52,856 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:04:52,915 WARN L237 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_f1a5b52c-5759-4570-9923-7be4281359ef/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2022-11-20 21:04:52,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:04:52,943 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:04:52,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52 WrapperNode [2022-11-20 21:04:52,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:04:52,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:04:52,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:04:52,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:04:52,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:52,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:52,993 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 210 [2022-11-20 21:04:52,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:04:52,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:04:52,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:04:52,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:04:53,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:04:53,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:04:53,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:04:53,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:04:53,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (1/1) ... [2022-11-20 21:04:53,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:04:53,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:04:53,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:04:53,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:04:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:04:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 21:04:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 21:04:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 21:04:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 21:04:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 21:04:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 21:04:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 21:04:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 21:04:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 21:04:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 21:04:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 21:04:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 21:04:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:04:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 21:04:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 21:04:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:04:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:04:53,237 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:04:53,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:04:53,631 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:04:53,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:04:53,736 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 21:04:53,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:53 BoogieIcfgContainer [2022-11-20 21:04:53,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:04:53,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:04:53,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:04:53,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:04:53,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:04:52" (1/3) ... [2022-11-20 21:04:53,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54582267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:53, skipping insertion in model container [2022-11-20 21:04:53,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:52" (2/3) ... [2022-11-20 21:04:53,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54582267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:53, skipping insertion in model container [2022-11-20 21:04:53,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:53" (3/3) ... [2022-11-20 21:04:53,747 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2022-11-20 21:04:53,765 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:04:53,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:04:53,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:04:53,818 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;@1609a96e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:04:53,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:04:53,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 44 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 21:04:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 21:04:53,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:53,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:53,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:53,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash 44590314, now seen corresponding path program 1 times [2022-11-20 21:04:53,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:53,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660250351] [2022-11-20 21:04:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:53,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:54,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:54,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660250351] [2022-11-20 21:04:54,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660250351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:54,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:54,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:04:54,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54168887] [2022-11-20 21:04:54,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:54,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:04:54,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:54,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:04:54,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:04:54,159 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 44 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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) [2022-11-20 21:04:54,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:54,258 INFO L93 Difference]: Finished difference Result 110 states and 149 transitions. [2022-11-20 21:04:54,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:04:54,260 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 [2022-11-20 21:04:54,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:54,269 INFO L225 Difference]: With dead ends: 110 [2022-11-20 21:04:54,269 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 21:04:54,273 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 [2022-11-20 21:04:54,276 INFO L413 NwaCegarLoop]: 53 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, 53 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 [2022-11-20 21:04:54,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:04:54,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 21:04:54,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-20 21:04:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 40 states have internal predecessors, (44), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:04:54,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2022-11-20 21:04:54,333 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 17 [2022-11-20 21:04:54,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:54,334 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2022-11-20 21:04:54,335 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) [2022-11-20 21:04:54,335 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2022-11-20 21:04:54,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 21:04:54,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:54,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:54,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:04:54,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:54,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:54,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1997038865, now seen corresponding path program 1 times [2022-11-20 21:04:54,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:54,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844796453] [2022-11-20 21:04:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:54,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:54,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:54,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844796453] [2022-11-20 21:04:54,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844796453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:54,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:54,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:54,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560462253] [2022-11-20 21:04:54,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:54,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:54,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:54,505 INFO L87 Difference]: Start difference. First operand 51 states and 65 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) [2022-11-20 21:04:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:54,591 INFO L93 Difference]: Finished difference Result 79 states and 101 transitions. [2022-11-20 21:04:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:54,592 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 [2022-11-20 21:04:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:54,593 INFO L225 Difference]: With dead ends: 79 [2022-11-20 21:04:54,593 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 21:04:54,594 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 [2022-11-20 21:04:54,595 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 69 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 [2022-11-20 21:04:54,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 69 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:04:54,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 21:04:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-20 21:04:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 35 states have internal predecessors, (38), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 21:04:54,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2022-11-20 21:04:54,603 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 18 [2022-11-20 21:04:54,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:54,604 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2022-11-20 21:04:54,604 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) [2022-11-20 21:04:54,604 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2022-11-20 21:04:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 21:04:54,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:54,605 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] [2022-11-20 21:04:54,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:04:54,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2026259861, now seen corresponding path program 1 times [2022-11-20 21:04:54,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:54,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236867853] [2022-11-20 21:04:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:54,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:54,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:54,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236867853] [2022-11-20 21:04:54,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236867853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:54,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:54,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:04:54,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982301828] [2022-11-20 21:04:54,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:54,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:04:54,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:54,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:04:54,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:04:54,785 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-20 21:04:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:54,903 INFO L93 Difference]: Finished difference Result 84 states and 107 transitions. [2022-11-20 21:04:54,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:04:54,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 20 [2022-11-20 21:04:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:54,905 INFO L225 Difference]: With dead ends: 84 [2022-11-20 21:04:54,905 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 21:04:54,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:04:54,907 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 44 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:54,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 49 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:04:54,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 21:04:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-20 21:04:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 35 states have internal predecessors, (37), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 21:04:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-11-20 21:04:54,917 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 20 [2022-11-20 21:04:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:54,918 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-11-20 21:04:54,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-20 21:04:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-11-20 21:04:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 21:04:54,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:54,919 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] [2022-11-20 21:04:54,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 21:04:54,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash 674423549, now seen corresponding path program 1 times [2022-11-20 21:04:54,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:54,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404379285] [2022-11-20 21:04:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:54,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:55,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:55,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404379285] [2022-11-20 21:04:55,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404379285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:55,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:55,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 21:04:55,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10622959] [2022-11-20 21:04:55,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:55,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:04:55,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:55,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:04:55,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:04:55,123 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-11-20 21:04:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:55,464 INFO L93 Difference]: Finished difference Result 223 states and 290 transitions. [2022-11-20 21:04:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 21:04:55,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 23 [2022-11-20 21:04:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:55,472 INFO L225 Difference]: With dead ends: 223 [2022-11-20 21:04:55,474 INFO L226 Difference]: Without dead ends: 182 [2022-11-20 21:04:55,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 21:04:55,480 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 151 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:55,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 304 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:04:55,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-20 21:04:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 157. [2022-11-20 21:04:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 120 states have internal predecessors, (138), 25 states have call successors, (25), 23 states have call predecessors, (25), 25 states have return successors, (34), 24 states have call predecessors, (34), 25 states have call successors, (34) [2022-11-20 21:04:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 197 transitions. [2022-11-20 21:04:55,555 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 197 transitions. Word has length 23 [2022-11-20 21:04:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:55,556 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 197 transitions. [2022-11-20 21:04:55,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-11-20 21:04:55,556 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 197 transitions. [2022-11-20 21:04:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 21:04:55,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:55,563 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, 1] [2022-11-20 21:04:55,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 21:04:55,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:55,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:55,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2050400496, now seen corresponding path program 1 times [2022-11-20 21:04:55,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:55,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514393136] [2022-11-20 21:04:55,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:55,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:55,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:55,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:55,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514393136] [2022-11-20 21:04:55,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514393136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:55,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:55,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 21:04:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26287196] [2022-11-20 21:04:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:55,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 21:04:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 21:04:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 21:04:55,868 INFO L87 Difference]: Start difference. First operand 157 states and 197 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 21:04:56,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:56,203 INFO L93 Difference]: Finished difference Result 445 states and 594 transitions. [2022-11-20 21:04:56,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 21:04:56,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-11-20 21:04:56,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:56,207 INFO L225 Difference]: With dead ends: 445 [2022-11-20 21:04:56,207 INFO L226 Difference]: Without dead ends: 326 [2022-11-20 21:04:56,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:04:56,209 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 196 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:56,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 195 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:04:56,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-11-20 21:04:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 272. [2022-11-20 21:04:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 185 states have (on average 1.2702702702702702) internal successors, (235), 199 states have internal predecessors, (235), 41 states have call successors, (41), 40 states have call predecessors, (41), 45 states have return successors, (68), 44 states have call predecessors, (68), 41 states have call successors, (68) [2022-11-20 21:04:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 344 transitions. [2022-11-20 21:04:56,258 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 344 transitions. Word has length 28 [2022-11-20 21:04:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:56,258 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 344 transitions. [2022-11-20 21:04:56,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 21:04:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 344 transitions. [2022-11-20 21:04:56,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 21:04:56,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:56,260 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, 1, 1, 1, 1] [2022-11-20 21:04:56,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 21:04:56,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:56,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:56,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1862021105, now seen corresponding path program 1 times [2022-11-20 21:04:56,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:56,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865232997] [2022-11-20 21:04:56,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:56,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:56,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:56,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865232997] [2022-11-20 21:04:56,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865232997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:56,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:56,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:04:56,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673156016] [2022-11-20 21:04:56,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:56,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:04:56,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:56,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:04:56,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:04:56,330 INFO L87 Difference]: Start difference. First operand 272 states and 344 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 21:04:56,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:56,494 INFO L93 Difference]: Finished difference Result 588 states and 758 transitions. [2022-11-20 21:04:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:04:56,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-20 21:04:56,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:56,498 INFO L225 Difference]: With dead ends: 588 [2022-11-20 21:04:56,498 INFO L226 Difference]: Without dead ends: 354 [2022-11-20 21:04:56,500 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 [2022-11-20 21:04:56,501 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 37 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:56,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 168 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:04:56,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-20 21:04:56,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 331. [2022-11-20 21:04:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 224 states have (on average 1.25) internal successors, (280), 242 states have internal predecessors, (280), 51 states have call successors, (51), 50 states have call predecessors, (51), 55 states have return successors, (80), 52 states have call predecessors, (80), 51 states have call successors, (80) [2022-11-20 21:04:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 411 transitions. [2022-11-20 21:04:56,565 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 411 transitions. Word has length 31 [2022-11-20 21:04:56,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:56,566 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 411 transitions. [2022-11-20 21:04:56,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 21:04:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 411 transitions. [2022-11-20 21:04:56,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 21:04:56,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:56,568 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, 1, 1, 1, 1] [2022-11-20 21:04:56,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 21:04:56,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:56,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1838330544, now seen corresponding path program 1 times [2022-11-20 21:04:56,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:56,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283479903] [2022-11-20 21:04:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:56,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:56,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:56,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283479903] [2022-11-20 21:04:56,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283479903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:56,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:56,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 21:04:56,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798709650] [2022-11-20 21:04:56,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:56,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:04:56,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:56,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:04:56,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:04:56,667 INFO L87 Difference]: Start difference. First operand 331 states and 411 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 21:04:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:56,846 INFO L93 Difference]: Finished difference Result 691 states and 869 transitions. [2022-11-20 21:04:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 21:04:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-20 21:04:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:56,849 INFO L225 Difference]: With dead ends: 691 [2022-11-20 21:04:56,850 INFO L226 Difference]: Without dead ends: 362 [2022-11-20 21:04:56,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:04:56,852 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 84 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:56,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 191 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:04:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-20 21:04:56,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 329. [2022-11-20 21:04:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 222 states have (on average 1.2342342342342343) internal successors, (274), 240 states have internal predecessors, (274), 51 states have call successors, (51), 50 states have call predecessors, (51), 55 states have return successors, (80), 52 states have call predecessors, (80), 51 states have call successors, (80) [2022-11-20 21:04:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 405 transitions. [2022-11-20 21:04:56,924 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 405 transitions. Word has length 31 [2022-11-20 21:04:56,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:56,924 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 405 transitions. [2022-11-20 21:04:56,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 21:04:56,924 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 405 transitions. [2022-11-20 21:04:56,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 21:04:56,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:56,934 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:56,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 21:04:56,934 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:56,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:56,935 INFO L85 PathProgramCache]: Analyzing trace with hash 326511953, now seen corresponding path program 1 times [2022-11-20 21:04:56,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:56,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903185720] [2022-11-20 21:04:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:56,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:57,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:57,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903185720] [2022-11-20 21:04:57,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903185720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:57,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:57,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 21:04:57,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297603904] [2022-11-20 21:04:57,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:57,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 21:04:57,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:57,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 21:04:57,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-20 21:04:57,274 INFO L87 Difference]: Start difference. First operand 329 states and 405 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:04:58,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:58,036 INFO L93 Difference]: Finished difference Result 941 states and 1192 transitions. [2022-11-20 21:04:58,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 21:04:58,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 34 [2022-11-20 21:04:58,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:58,041 INFO L225 Difference]: With dead ends: 941 [2022-11-20 21:04:58,041 INFO L226 Difference]: Without dead ends: 647 [2022-11-20 21:04:58,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2022-11-20 21:04:58,044 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 238 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:58,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 319 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 21:04:58,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-11-20 21:04:58,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 622. [2022-11-20 21:04:58,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 428 states have (on average 1.2406542056074767) internal successors, (531), 461 states have internal predecessors, (531), 96 states have call successors, (96), 88 states have call predecessors, (96), 97 states have return successors, (141), 95 states have call predecessors, (141), 96 states have call successors, (141) [2022-11-20 21:04:58,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 768 transitions. [2022-11-20 21:04:58,146 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 768 transitions. Word has length 34 [2022-11-20 21:04:58,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:58,146 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 768 transitions. [2022-11-20 21:04:58,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:04:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 768 transitions. [2022-11-20 21:04:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 21:04:58,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:58,149 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 21:04:58,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 21:04:58,150 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:58,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1714703111, now seen corresponding path program 1 times [2022-11-20 21:04:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:58,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228676844] [2022-11-20 21:04:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:58,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 21:04:58,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:58,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228676844] [2022-11-20 21:04:58,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228676844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:04:58,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869155925] [2022-11-20 21:04:58,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:58,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:04:58,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:04:58,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:04:58,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 21:04:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:58,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 21:04:58,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:04:58,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:58,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869155925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:58,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 21:04:58,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-20 21:04:58,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801814845] [2022-11-20 21:04:58,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:58,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:04:58,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:04:58,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:04:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 21:04:58,540 INFO L87 Difference]: Start difference. First operand 622 states and 768 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 21:04:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:58,776 INFO L93 Difference]: Finished difference Result 857 states and 1064 transitions. [2022-11-20 21:04:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 21:04:58,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2022-11-20 21:04:58,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:58,778 INFO L225 Difference]: With dead ends: 857 [2022-11-20 21:04:58,778 INFO L226 Difference]: Without dead ends: 288 [2022-11-20 21:04:58,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 21:04:58,780 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 89 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:58,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 139 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:04:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-11-20 21:04:58,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 237. [2022-11-20 21:04:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.2181818181818183) internal successors, (201), 177 states have internal predecessors, (201), 34 states have call successors, (34), 33 states have call predecessors, (34), 37 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2022-11-20 21:04:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 275 transitions. [2022-11-20 21:04:58,817 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 275 transitions. Word has length 49 [2022-11-20 21:04:58,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:58,818 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 275 transitions. [2022-11-20 21:04:58,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 21:04:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 275 transitions. [2022-11-20 21:04:58,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 21:04:58,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:58,819 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 21:04:58,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:04:59,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:04:59,036 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1508820517, now seen corresponding path program 1 times [2022-11-20 21:04:59,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:04:59,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267163700] [2022-11-20 21:04:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:59,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:04:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 21:04:59,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:04:59,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267163700] [2022-11-20 21:04:59,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267163700] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:04:59,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020941216] [2022-11-20 21:04:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:59,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:04:59,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:04:59,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:04:59,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 21:04:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:59,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 21:04:59,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 21:04:59,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:05:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 21:05:00,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020941216] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:05:00,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [621923840] [2022-11-20 21:05:00,054 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2022-11-20 21:05:00,055 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:05:00,059 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:05:00,065 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:05:00,066 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:05:04,633 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-11-20 21:05:04,645 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 53 for LOIs [2022-11-20 21:05:04,893 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 51 for LOIs [2022-11-20 21:05:04,963 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 25 for LOIs [2022-11-20 21:05:04,965 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:05:09,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [621923840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:05:09,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 21:05:09,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [7, 9, 8] total 40 [2022-11-20 21:05:09,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989487639] [2022-11-20 21:05:09,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:05:09,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 21:05:09,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:05:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 21:05:09,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1341, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 21:05:09,610 INFO L87 Difference]: Start difference. First operand 237 states and 275 transitions. Second operand has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:05:14,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:05:14,305 INFO L93 Difference]: Finished difference Result 571 states and 673 transitions. [2022-11-20 21:05:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 21:05:14,308 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 51 [2022-11-20 21:05:14,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:05:14,314 INFO L225 Difference]: With dead ends: 571 [2022-11-20 21:05:14,314 INFO L226 Difference]: Without dead ends: 399 [2022-11-20 21:05:14,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 112 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=348, Invalid=2004, Unknown=0, NotChecked=0, Total=2352 [2022-11-20 21:05:14,319 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 131 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:05:14,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 479 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 21:05:14,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-20 21:05:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 358. [2022-11-20 21:05:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 252 states have (on average 1.1984126984126984) internal successors, (302), 266 states have internal predecessors, (302), 50 states have call successors, (50), 49 states have call predecessors, (50), 55 states have return successors, (60), 49 states have call predecessors, (60), 50 states have call successors, (60) [2022-11-20 21:05:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 412 transitions. [2022-11-20 21:05:14,394 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 412 transitions. Word has length 51 [2022-11-20 21:05:14,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:05:14,395 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 412 transitions. [2022-11-20 21:05:14,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:05:14,395 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 412 transitions. [2022-11-20 21:05:14,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 21:05:14,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:05:14,397 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, 1, 1, 1, 1, 1] [2022-11-20 21:05:14,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 21:05:14,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 21:05:14,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:05:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:05:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1085177077, now seen corresponding path program 1 times [2022-11-20 21:05:14,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:05:14,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977107654] [2022-11-20 21:05:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:05:14,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:05:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:05:14,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:05:14,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:05:14,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977107654] [2022-11-20 21:05:14,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977107654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:05:14,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:05:14,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 21:05:14,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041171621] [2022-11-20 21:05:14,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:05:14,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 21:05:14,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:05:14,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 21:05:14,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-20 21:05:14,933 INFO L87 Difference]: Start difference. First operand 358 states and 412 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 21:05:15,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:05:15,438 INFO L93 Difference]: Finished difference Result 797 states and 933 transitions. [2022-11-20 21:05:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 21:05:15,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 52 [2022-11-20 21:05:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:05:15,442 INFO L225 Difference]: With dead ends: 797 [2022-11-20 21:05:15,442 INFO L226 Difference]: Without dead ends: 541 [2022-11-20 21:05:15,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-11-20 21:05:15,444 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 183 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:05:15,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 132 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:05:15,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-11-20 21:05:15,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 434. [2022-11-20 21:05:15,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 304 states have (on average 1.1776315789473684) internal successors, (358), 322 states have internal predecessors, (358), 61 states have call successors, (61), 60 states have call predecessors, (61), 68 states have return successors, (75), 60 states have call predecessors, (75), 61 states have call successors, (75) [2022-11-20 21:05:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 494 transitions. [2022-11-20 21:05:15,530 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 494 transitions. Word has length 52 [2022-11-20 21:05:15,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:05:15,533 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 494 transitions. [2022-11-20 21:05:15,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 21:05:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 494 transitions. [2022-11-20 21:05:15,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 21:05:15,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:05:15,535 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 21:05:15,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 21:05:15,535 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:05:15,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:05:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1476180048, now seen corresponding path program 1 times [2022-11-20 21:05:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:05:15,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819012582] [2022-11-20 21:05:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:05:15,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:05:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:05:15,997 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:05:15,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:05:15,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819012582] [2022-11-20 21:05:15,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819012582] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:05:15,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376776540] [2022-11-20 21:05:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:05:15,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:05:15,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:05:16,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:05:16,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 21:05:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:05:16,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 21:05:16,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:05:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:05:16,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:05:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:05:16,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376776540] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 21:05:16,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:05:16,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 7] total 19 [2022-11-20 21:05:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973524032] [2022-11-20 21:05:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:05:16,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 21:05:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:05:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 21:05:16,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-11-20 21:05:16,430 INFO L87 Difference]: Start difference. First operand 434 states and 494 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 21:05:16,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:05:16,690 INFO L93 Difference]: Finished difference Result 722 states and 853 transitions. [2022-11-20 21:05:16,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 21:05:16,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2022-11-20 21:05:16,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:05:16,696 INFO L225 Difference]: With dead ends: 722 [2022-11-20 21:05:16,696 INFO L226 Difference]: Without dead ends: 552 [2022-11-20 21:05:16,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 100 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-11-20 21:05:16,698 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 152 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:05:16,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 144 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:05:16,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-11-20 21:05:16,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 500. [2022-11-20 21:05:16,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 348 states have (on average 1.160919540229885) internal successors, (404), 369 states have internal predecessors, (404), 71 states have call successors, (71), 70 states have call predecessors, (71), 80 states have return successors, (89), 70 states have call predecessors, (89), 71 states have call successors, (89) [2022-11-20 21:05:16,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 564 transitions. [2022-11-20 21:05:16,794 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 564 transitions. Word has length 53 [2022-11-20 21:05:16,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:05:16,795 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 564 transitions. [2022-11-20 21:05:16,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 21:05:16,795 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 564 transitions. [2022-11-20 21:05:16,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 21:05:16,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:05:16,797 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2022-11-20 21:05:16,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 21:05:17,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 21:05:17,002 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:05:17,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:05:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash 414009960, now seen corresponding path program 1 times [2022-11-20 21:05:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:05:17,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303376748] [2022-11-20 21:05:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:05:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:05:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:05:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 21:05:17,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:05:17,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303376748] [2022-11-20 21:05:17,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303376748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:05:17,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095906834] [2022-11-20 21:05:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:05:17,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:05:17,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:05:17,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:05:17,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 21:05:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:05:17,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 21:05:17,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:05:17,301 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 21:05:17,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:05:17,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095906834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:05:17,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 21:05:17,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-20 21:05:17,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947049955] [2022-11-20 21:05:17,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:05:17,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:05:17,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:05:17,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:05:17,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-20 21:05:17,304 INFO L87 Difference]: Start difference. First operand 500 states and 564 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 21:05:17,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:05:17,524 INFO L93 Difference]: Finished difference Result 796 states and 920 transitions. [2022-11-20 21:05:17,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 21:05:17,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-20 21:05:17,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:05:17,526 INFO L225 Difference]: With dead ends: 796 [2022-11-20 21:05:17,526 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:05:17,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-20 21:05:17,530 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 45 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:05:17,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 185 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:05:17,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:05:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:05:17,532 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) [2022-11-20 21:05:17,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:05:17,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-11-20 21:05:17,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:05:17,533 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:05:17,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 21:05:17,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:05:17,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:05:17,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 21:05:17,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 21:05:17,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 21:05:17,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 21:05:34,275 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 806 812) no Hoare annotation was computed. [2022-11-20 21:05:34,275 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 806 812) the Hoare annotation is: true [2022-11-20 21:05:34,276 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 486 497) the Hoare annotation is: (or (not (= |#NULL.offset| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0) (not (= 1 ~systemActive~0)) (not (= ~head~0.offset 0)) (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-20 21:05:34,276 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 486 497) no Hoare annotation was computed. [2022-11-20 21:05:34,276 INFO L895 garLoopResultBuilder]: At program point L704(line 704) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1))) [2022-11-20 21:05:34,277 INFO L895 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 1)) (and (<= ~waterLevel~0 1) (= ~pumpRunning~0 1)) .cse0 .cse1))) [2022-11-20 21:05:34,277 INFO L895 garLoopResultBuilder]: At program point L429(lines 429 449) the Hoare annotation is: (let ((.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (let ((.cse1 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (and (or (not (= |old(~waterLevel~0)| 1)) .cse2) (or (and .cse8 (not (<= |old(~waterLevel~0)| 0))) .cse2))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse0 (<= ~waterLevel~0 1))) (or (not (= |old(~pumpRunning~0)| 1)) (and .cse0 .cse1) .cse2 .cse3 (and .cse4 .cse0))) (or .cse5 .cse3 (and .cse6 .cse1) .cse7) (or .cse8 (and .cse4 .cse6) (not (< |old(~waterLevel~0)| 2)) .cse5) (or (not (= |#NULL.offset| 0)) (not (= 1 ~systemActive~0)) (not (= ~head~0.offset 0)) (and (<= |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1| 0) (<= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1|)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) .cse5 (not (<= 0 |#StackHeapBarrier|)) .cse3 (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)) .cse7)))) [2022-11-20 21:05:34,278 INFO L895 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= 0 ~systemActive~0))) (let ((.cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (and (or (not (= |old(~waterLevel~0)| 1)) .cse4) (or (and .cse0 (not (<= |old(~waterLevel~0)| 0))) .cse4))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2) (or .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 1)) .cse4 .cse3)))) [2022-11-20 21:05:34,278 INFO L895 garLoopResultBuilder]: At program point L859-1(lines 840 864) the Hoare annotation is: (let ((.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (let ((.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (and (or (not (= |old(~waterLevel~0)| 1)) .cse2) (or (and .cse7 (not (<= |old(~waterLevel~0)| 0))) .cse2)))) (and (let ((.cse0 (<= ~waterLevel~0 1))) (or (not (= |old(~pumpRunning~0)| 1)) (and .cse0 .cse1) .cse2 .cse3 (and .cse4 .cse0))) (or .cse5 .cse3 (and .cse6 .cse1) (not (<= 2 |old(~waterLevel~0)|))) (or .cse7 (and .cse4 .cse6) (not (< |old(~waterLevel~0)| 2)) .cse5)))) [2022-11-20 21:05:34,278 INFO L899 garLoopResultBuilder]: For program point L793-1(lines 793 799) no Hoare annotation was computed. [2022-11-20 21:05:34,278 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2022-11-20 21:05:34,279 INFO L895 garLoopResultBuilder]: At program point L435(lines 435 448) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse6 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (= 0 ~systemActive~0))) (let ((.cse7 (= ~pumpRunning~0 1)) (.cse0 (and (or (not (= |old(~waterLevel~0)| 1)) .cse8) (or (and .cse2 (not (<= |old(~waterLevel~0)| 0))) .cse8))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) .cse4 .cse6 .cse9 (not .cse8)))) (and (or (not (= |#NULL.offset| 0)) (not (= 1 ~systemActive~0)) (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) .cse0 (and (= |timeShift_getWaterLevel_~retValue_acc~4#1| ~waterLevel~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1| 0)) (not (<= 0 |#StackHeapBarrier|)) .cse1 (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 (not (< |old(~waterLevel~0)| 2)) .cse0 .cse3) (let ((.cse5 (<= ~waterLevel~0 1))) (or (and .cse4 .cse5 .cse6) (not (= |old(~pumpRunning~0)| 1)) (and .cse5 .cse6 .cse7) .cse8 .cse1)) (or .cse2 (and (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 2) .cse9 (not .cse6) .cse7) .cse0 .cse1 .cse3)))) [2022-11-20 21:05:34,280 INFO L895 garLoopResultBuilder]: At program point L435-1(lines 420 452) the Hoare annotation is: (let ((.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (and (or (not (= |old(~waterLevel~0)| 1)) .cse1) (or (and .cse7 (not (<= |old(~waterLevel~0)| 0))) .cse1))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse0 (<= ~waterLevel~0 1))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (= |old(~pumpRunning~0)| 1)) .cse1 .cse2 (and .cse3 .cse0))) (or .cse4 .cse2 (and .cse5 (= ~pumpRunning~0 1)) .cse6) (or .cse7 (and .cse3 .cse5) (not (< |old(~waterLevel~0)| 2)) .cse4) (or (not (= |#NULL.offset| 0)) (not (= 1 ~systemActive~0)) (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) .cse4 (not (<= 0 |#StackHeapBarrier|)) .cse2 (and (= |timeShift_getWaterLevel_~retValue_acc~4#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~4#1| ~waterLevel~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1| 0)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)) .cse6)))) [2022-11-20 21:05:34,280 INFO L899 garLoopResultBuilder]: For program point L786-1(lines 785 804) no Hoare annotation was computed. [2022-11-20 21:05:34,280 INFO L895 garLoopResultBuilder]: At program point L848(lines 848 856) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 1)) (and (<= ~waterLevel~0 1) (= ~pumpRunning~0 1)) .cse0 .cse1))) [2022-11-20 21:05:34,280 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 782 805) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse2) .cse0 .cse1))) [2022-11-20 21:05:34,281 INFO L895 garLoopResultBuilder]: At program point L844(lines 844 861) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= 0 ~systemActive~0))) (let ((.cse3 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse4 (and (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (and .cse2 (not (<= |old(~waterLevel~0)| 0))) .cse0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 1)) (and (<= ~waterLevel~0 1) (= ~pumpRunning~0 1)) .cse0 .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse2 .cse3 .cse4) (or .cse3 .cse4 .cse1 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-20 21:05:34,281 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (let ((.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (let ((.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (and (or (not (= |old(~waterLevel~0)| 1)) .cse2) (or (and .cse7 (not (<= |old(~waterLevel~0)| 0))) .cse2)))) (and (let ((.cse0 (<= ~waterLevel~0 1))) (or (not (= |old(~pumpRunning~0)| 1)) (and .cse0 .cse1) .cse2 .cse3 (and .cse4 .cse0))) (or .cse5 .cse3 (and .cse6 .cse1) (not (<= 2 |old(~waterLevel~0)|))) (or .cse7 (and .cse4 .cse6) (not (< |old(~waterLevel~0)| 2)) .cse5)))) [2022-11-20 21:05:34,281 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 782 805) no Hoare annotation was computed. [2022-11-20 21:05:34,281 INFO L899 garLoopResultBuilder]: For program point L427-1(line 427) no Hoare annotation was computed. [2022-11-20 21:05:34,282 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 704) no Hoare annotation was computed. [2022-11-20 21:05:34,282 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 565 594) no Hoare annotation was computed. [2022-11-20 21:05:34,282 INFO L902 garLoopResultBuilder]: At program point L575-2(lines 575 589) the Hoare annotation is: true [2022-11-20 21:05:34,282 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 565 594) the Hoare annotation is: true [2022-11-20 21:05:34,282 INFO L902 garLoopResultBuilder]: At program point L571(line 571) the Hoare annotation is: true [2022-11-20 21:05:34,282 INFO L899 garLoopResultBuilder]: For program point L571-1(line 571) no Hoare annotation was computed. [2022-11-20 21:05:34,282 INFO L902 garLoopResultBuilder]: At program point L590(lines 565 594) the Hoare annotation is: true [2022-11-20 21:05:34,283 INFO L899 garLoopResultBuilder]: For program point L586(line 586) no Hoare annotation was computed. [2022-11-20 21:05:34,283 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 583) no Hoare annotation was computed. [2022-11-20 21:05:34,283 INFO L902 garLoopResultBuilder]: At program point L579-1(lines 579 583) the Hoare annotation is: true [2022-11-20 21:05:34,283 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 498 506) the Hoare annotation is: true [2022-11-20 21:05:34,283 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 498 506) no Hoare annotation was computed. [2022-11-20 21:05:34,284 INFO L895 garLoopResultBuilder]: At program point L758-2(lines 750 763) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-20 21:05:34,284 INFO L899 garLoopResultBuilder]: For program point L721(lines 720 767) no Hoare annotation was computed. [2022-11-20 21:05:34,284 INFO L895 garLoopResultBuilder]: At program point L651(lines 651 658) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) (= ~pumpRunning~0 0) (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= 30 (select |#length| 13)) (= 30 (select |#length| 10)) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= (select |#valid| 12) 1) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_main_~tmp~4#1|) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (= (select |#valid| 14) 1) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) (= ~head~0.base 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= ~waterLevel~0 1) (= (select .cse0 0) 48) (= (select |#valid| 6) 1) (= |ULTIMATE.start_valid_product_~retValue_acc~9#1| |ULTIMATE.start_valid_product_#res#1|) (= (select .cse0 1) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))) [2022-11-20 21:05:34,285 INFO L902 garLoopResultBuilder]: At program point L651-2(lines 651 658) the Hoare annotation is: true [2022-11-20 21:05:34,285 INFO L895 garLoopResultBuilder]: At program point L742(line 742) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-20 21:05:34,285 INFO L902 garLoopResultBuilder]: At program point L771(lines 710 775) the Hoare annotation is: true [2022-11-20 21:05:34,285 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 21:05:34,285 INFO L899 garLoopResultBuilder]: For program point L730(lines 730 736) no Hoare annotation was computed. [2022-11-20 21:05:34,286 INFO L899 garLoopResultBuilder]: For program point L730-1(lines 730 736) no Hoare annotation was computed. [2022-11-20 21:05:34,286 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 21:05:34,286 INFO L895 garLoopResultBuilder]: At program point L768(lines 719 769) the Hoare annotation is: false [2022-11-20 21:05:34,286 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 746) no Hoare annotation was computed. [2022-11-20 21:05:34,286 INFO L895 garLoopResultBuilder]: At program point L740-1(lines 740 746) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-20 21:05:34,286 INFO L895 garLoopResultBuilder]: At program point L765(lines 720 767) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and .cse0 .cse1 (<= ~waterLevel~0 2) .cse2 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2022-11-20 21:05:34,287 INFO L895 garLoopResultBuilder]: At program point L732(line 732) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-20 21:05:34,287 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 814 838) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse0 (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse0))) [2022-11-20 21:05:34,288 INFO L895 garLoopResultBuilder]: At program point L828(line 828) the Hoare annotation is: (let ((.cse3 (not (= |#NULL.offset| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~head~0.offset 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse12 (not (= |#NULL.base| 0))) (.cse0 (= ~waterLevel~0 1)) (.cse7 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| 1)) (.cse8 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1|)) (.cse9 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (.cse10 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|)) (.cse11 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (.cse13 (not (= ~head~0.base 0))) (.cse14 (not (= ~cleanupTimeShifts~0 4))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse15 (not (<= ~waterLevel~0 2))) (.cse16 (<= ~waterLevel~0 1)) (.cse17 (= 0 ~systemActive~0))) (and (let ((.cse2 (select |#memory_int| 1))) (or (not .cse0) (not (= (select |#length| 12) 25)) .cse1 (not (= (select .cse2 0) 48)) .cse3 (not (= 9 (select |#length| 11))) (not (= 9 (select |#length| 5))) (not (= 30 (select |#length| 7))) (not (= 31 (select |#length| 2))) (not (= (select |#valid| 12) 1)) (not (= 2 (select |#length| 1))) (not (= 9 (select |#length| 14))) .cse4 (not (= (select |#length| 15) 25)) (not (= (select |#valid| 6) 1)) (not (< 0 |#StackHeapBarrier|)) (not (= (select |#valid| 3) 1)) .cse5 (not (= (select |#valid| 11) 1)) (not (= (select |#length| 9) 21)) (not (= 30 (select |#length| 10))) (not (= (select |#valid| 15) 1)) (not (= (select |#length| 6) 21)) (not (= 1 (select |#valid| 5))) (not (= (select |#length| 8) 9)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) .cse6 (not (= (select .cse2 1) 0)) (not (= (select |#valid| 1) 1)) (and .cse7 .cse8 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|) .cse9 .cse10 .cse11) (not (= (select |#valid| 8) 1)) (not (= 30 (select |#length| 13))) (not (= (select |#valid| 4) 1)) .cse12 (not (= (select |#valid| 7) 1)) (not (= (select |#valid| 10) 1)) (not (= (select |#valid| 14) 1)) (not (= (select |#valid| 13) 1)) (not (= 30 (select |#length| 4))) (not (= (select |#valid| 2) 1)) (not (= (select |#valid| 9) 1)) .cse13 .cse14)) (or .cse1 .cse3 .cse4 .cse5 .cse6 .cse15 .cse12 (not (<= 0 |#StackHeapBarrier|)) .cse0 (and .cse7 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) .cse8 .cse9 .cse10 .cse11) .cse13 .cse14) (or .cse1 (and (= ~pumpRunning~0 0) .cse16 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)) .cse15 .cse17) (or (not (= |old(~pumpRunning~0)| 1)) (not .cse16) .cse17))) [2022-11-20 21:05:34,290 INFO L895 garLoopResultBuilder]: At program point L822(lines 822 830) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 1))) (let ((.cse6 (not (= |#NULL.offset| 0))) (.cse11 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1|)) (.cse10 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| 1)) (.cse13 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|)) (.cse12 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (.cse14 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (.cse7 (not (= 1 ~systemActive~0))) (.cse8 (not (= ~head~0.offset 0))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse15 (not (= |#NULL.base| 0))) (.cse4 (= ~waterLevel~0 1)) (.cse16 (not (= ~head~0.base 0))) (.cse17 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse20 (not .cse3)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (or .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 1)))) (let ((.cse5 (select |#memory_int| 1))) (or (not .cse4) (not (= (select |#length| 12) 25)) .cse0 (not (= (select .cse5 0) 48)) .cse6 (not (= 9 (select |#length| 11))) (not (= 9 (select |#length| 5))) (not (= 30 (select |#length| 7))) (not (= 31 (select |#length| 2))) (not (= (select |#valid| 12) 1)) (not (= 2 (select |#length| 1))) (not (= 9 (select |#length| 14))) .cse7 (not (= (select |#length| 15) 25)) (not (= (select |#valid| 6) 1)) (not (< 0 |#StackHeapBarrier|)) (not (= (select |#valid| 3) 1)) .cse8 (not (= (select |#valid| 11) 1)) (not (= (select |#length| 9) 21)) (not (= 30 (select |#length| 10))) (not (= (select |#valid| 15) 1)) (not (= (select |#length| 6) 21)) (not (= 1 (select |#valid| 5))) (not (= (select |#length| 8) 9)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) .cse9 (not (= (select .cse5 1) 0)) (not (= (select |#valid| 1) 1)) (and .cse10 .cse11 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|) .cse12 .cse13 .cse14) (not (= (select |#valid| 8) 1)) (not (= 30 (select |#length| 13))) (not (= (select |#valid| 4) 1)) .cse15 (not (= (select |#valid| 7) 1)) (not (= (select |#valid| 10) 1)) (not (= (select |#valid| 14) 1)) (not (= (select |#valid| 13) 1)) (not (= 30 (select |#length| 4))) (not (= (select |#valid| 2) 1)) (not (= (select |#valid| 9) 1)) .cse16 .cse17)) (or .cse0 .cse6 (and .cse11 (let ((.cse18 (< ~waterLevel~0 2))) (or (and (not .cse18) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| 0) .cse13) (and .cse10 .cse18 .cse13))) .cse12 (let ((.cse19 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1| 0))) (or (and (not .cse19) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0)) (and .cse19 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 1)))) .cse14) .cse7 .cse8 .cse9 .cse1 .cse15 (not (<= 0 |#StackHeapBarrier|)) .cse4 .cse16 .cse17) (or (not (= |old(~pumpRunning~0)| 1)) .cse20 .cse2) (or .cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0) .cse20 .cse2)))) [2022-11-20 21:05:34,290 INFO L895 garLoopResultBuilder]: At program point L818(lines 818 835) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse0 (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse0))) [2022-11-20 21:05:34,290 INFO L895 garLoopResultBuilder]: At program point L833(line 833) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse0 (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) .cse0))) [2022-11-20 21:05:34,290 INFO L899 garLoopResultBuilder]: For program point L833-1(lines 814 838) no Hoare annotation was computed. [2022-11-20 21:05:34,290 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 814 838) no Hoare annotation was computed. [2022-11-20 21:05:34,291 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 474 485) no Hoare annotation was computed. [2022-11-20 21:05:34,291 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 474 485) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2) (or (not (= ~pumpRunning~0 1)) .cse0 .cse1 .cse2))) [2022-11-20 21:05:34,294 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:05:34,296 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:05:34,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:05:34 BoogieIcfgContainer [2022-11-20 21:05:34,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:05:34,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:05:34,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:05:34,342 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:05:34,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:53" (3/4) ... [2022-11-20 21:05:34,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:05:34,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 21:05:34,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 21:05:34,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 21:05:34,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 21:05:34,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-20 21:05:34,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 21:05:34,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 21:05:34,359 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2022-11-20 21:05:34,359 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 21:05:34,360 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 21:05:34,360 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:05:34,361 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:05:34,385 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 30 == unknown-#length-unknown[10]) && tmp == 1) && \valid[12] == 1) && \result == tmp) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && tmp == systemActive) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && retValue_acc == \result) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 [2022-11-20 21:05:34,386 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) [2022-11-20 21:05:34,387 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)))) && ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-20 21:05:34,387 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) [2022-11-20 21:05:34,387 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 1) || !(waterLevel <= 1)) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || 0 == systemActive) [2022-11-20 21:05:34,388 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(head == 0)) || (tmp <= 0 && 0 <= tmp)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) [2022-11-20 21:05:34,388 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (((retValue_acc == \result && retValue_acc == waterLevel) && \result == tmp___0) && tmp == 0)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) [2022-11-20 21:05:34,389 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || ((retValue_acc == waterLevel && \result == tmp___0) && tmp == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || (((((pumpRunning == \old(pumpRunning) && waterLevel <= tmp___0) && pumpRunning == 0) && tmp___0 <= 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive)))) && ((((((pumpRunning == 0 && waterLevel <= 1) && tmp___0 <= 1) || !(\old(pumpRunning) == 1)) || ((waterLevel <= 1 && tmp___0 <= 1) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (((tmp___0 <= 2 && \old(waterLevel) == waterLevel) && !(tmp___0 <= 1)) && pumpRunning == 1)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(\old(waterLevel) <= 2)) || (((((pumpRunning == \old(pumpRunning) && waterLevel <= tmp___0) && pumpRunning == 0) && tmp___0 <= 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) [2022-11-20 21:05:34,389 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) [2022-11-20 21:05:34,390 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) [2022-11-20 21:05:34,390 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(waterLevel <= 2)) || 0 == systemActive) || (pumpRunning == 0 && (waterLevel <= 1 || tmp == 1))) && (((((((((((((((((((((((((((((((((((((((((((!(waterLevel == 1) || !(unknown-#length-unknown[12] == 25)) || !(\old(pumpRunning) == 0)) || !(unknown-#memory_int-unknown[1][0] == 48)) || !(#NULL == 0)) || !(9 == unknown-#length-unknown[11])) || !(9 == unknown-#length-unknown[5])) || !(30 == unknown-#length-unknown[7])) || !(31 == unknown-#length-unknown[2])) || !(\valid[12] == 1)) || !(2 == unknown-#length-unknown[1])) || !(9 == unknown-#length-unknown[14])) || !(1 == systemActive)) || !(unknown-#length-unknown[15] == 25)) || !(\valid[6] == 1)) || !(0 < unknown-#StackHeapBarrier-unknown)) || !(\valid[3] == 1)) || !(head == 0)) || !(\valid[11] == 1)) || !(unknown-#length-unknown[9] == 21)) || !(30 == unknown-#length-unknown[10])) || !(\valid[15] == 1)) || !(unknown-#length-unknown[6] == 21)) || !(1 == \valid[5])) || !(unknown-#length-unknown[8] == 9)) || !(unknown-#length-unknown[3] == 12)) || !(\valid[0] == 0)) || !(methaneLevelCritical == 0)) || !(unknown-#memory_int-unknown[1][1] == 0)) || !(\valid[1] == 1)) || (((((retValue_acc == 1 && \result == tmp) && retValue_acc == tmp___0) && retValue_acc == \result) && retValue_acc == \result) && tmp == \result)) || !(\valid[8] == 1)) || !(30 == unknown-#length-unknown[13])) || !(\valid[4] == 1)) || !(#NULL == 0)) || !(\valid[7] == 1)) || !(\valid[10] == 1)) || !(\valid[14] == 1)) || !(\valid[13] == 1)) || !(30 == unknown-#length-unknown[4])) || !(\valid[2] == 1)) || !(\valid[9] == 1)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || ((((\result == tmp && (((!(waterLevel < 2) && retValue_acc == 0) && retValue_acc == \result) || ((retValue_acc == 1 && waterLevel < 2) && retValue_acc == \result))) && retValue_acc == \result) && ((!(tmp == 0) && tmp___0 == 0) || (tmp == 0 && tmp___0 == 1))) && tmp == \result)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || waterLevel == 1) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 1) || !(waterLevel <= 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(waterLevel <= 1)) || 0 == systemActive) [2022-11-20 21:05:34,412 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:05:34,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:05:34,413 INFO L158 Benchmark]: Toolchain (without parser) took 41944.79ms. Allocated memory was 169.9MB in the beginning and 494.9MB in the end (delta: 325.1MB). Free memory was 130.7MB in the beginning and 180.3MB in the end (delta: -49.6MB). Peak memory consumption was 278.3MB. Max. memory is 16.1GB. [2022-11-20 21:05:34,414 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:05:34,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.48ms. Allocated memory is still 169.9MB. Free memory was 130.7MB in the beginning and 111.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 21:05:34,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.95ms. Allocated memory is still 169.9MB. Free memory was 111.8MB in the beginning and 109.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:05:34,415 INFO L158 Benchmark]: Boogie Preprocessor took 30.11ms. Allocated memory is still 169.9MB. Free memory was 109.5MB in the beginning and 107.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:05:34,415 INFO L158 Benchmark]: RCFGBuilder took 713.52ms. Allocated memory is still 169.9MB. Free memory was 107.7MB in the beginning and 126.8MB in the end (delta: -19.1MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-11-20 21:05:34,415 INFO L158 Benchmark]: TraceAbstraction took 40600.40ms. Allocated memory was 169.9MB in the beginning and 494.9MB in the end (delta: 325.1MB). Free memory was 126.0MB in the beginning and 185.5MB in the end (delta: -59.6MB). Peak memory consumption was 287.3MB. Max. memory is 16.1GB. [2022-11-20 21:05:34,416 INFO L158 Benchmark]: Witness Printer took 71.01ms. Allocated memory is still 494.9MB. Free memory was 185.5MB in the beginning and 180.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 21:05:34,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.48ms. Allocated memory is still 169.9MB. Free memory was 130.7MB in the beginning and 111.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.95ms. Allocated memory is still 169.9MB. Free memory was 111.8MB in the beginning and 109.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.11ms. Allocated memory is still 169.9MB. Free memory was 109.5MB in the beginning and 107.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 713.52ms. Allocated memory is still 169.9MB. Free memory was 107.7MB in the beginning and 126.8MB in the end (delta: -19.1MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 40600.40ms. Allocated memory was 169.9MB in the beginning and 494.9MB in the end (delta: 325.1MB). Free memory was 126.0MB in the beginning and 185.5MB in the end (delta: -59.6MB). Peak memory consumption was 287.3MB. Max. memory is 16.1GB. * Witness Printer took 71.01ms. Allocated memory is still 494.9MB. Free memory was 185.5MB in the beginning and 180.3MB in the end (delta: 5.2MB). 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: 704]: 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 8 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.5s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1388 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1357 mSDsluCounter, 2427 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1630 mSDsCounter, 494 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2935 IncrementalHoareTripleChecker+Invalid, 3429 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 494 mSolverCounterUnsat, 797 mSDtfsCounter, 2935 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 515 GetRequests, 358 SyntacticMatches, 12 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=622occurred in iteration=8, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 411 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 1699 PreInvPairs, 1866 NumberOfFragments, 2412 HoareAnnotationTreeSize, 1699 FomulaSimplifications, 24490 FormulaSimplificationTreeSizeReduction, 3.7s HoareSimplificationTime, 35 FomulaSimplificationsInter, 118770 FormulaSimplificationTreeSizeReductionInter, 12.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 684 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 2080 SizeOfPredicates, 31 NumberOfNonLiveVariables, 1114 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 191/220 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: OVERALL_TIME: 4.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 40, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 49, TOOLS_POST_TIME: 1.1s, TOOLS_POST_CALL_APPLICATIONS: 20, TOOLS_POST_CALL_TIME: 2.0s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 1.4s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 84, TOOLS_QUANTIFIERELIM_TIME: 4.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 115, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 40, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 3.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 4, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 440, DAG_COMPRESSION_RETAINED_NODES: 109, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 651]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: (((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (((retValue_acc == \result && retValue_acc == waterLevel) && \result == tmp___0) && tmp == 0)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 720]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && waterLevel <= 2) && tmp == systemActive) && pumpRunning == 1) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 1) && splverifierCounter == 0) && tmp == systemActive) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)))) && ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 782]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(waterLevel <= 2)) || 0 == systemActive) || (pumpRunning == 0 && (waterLevel <= 1 || tmp == 1))) && (((((((((((((((((((((((((((((((((((((((((((!(waterLevel == 1) || !(unknown-#length-unknown[12] == 25)) || !(\old(pumpRunning) == 0)) || !(unknown-#memory_int-unknown[1][0] == 48)) || !(#NULL == 0)) || !(9 == unknown-#length-unknown[11])) || !(9 == unknown-#length-unknown[5])) || !(30 == unknown-#length-unknown[7])) || !(31 == unknown-#length-unknown[2])) || !(\valid[12] == 1)) || !(2 == unknown-#length-unknown[1])) || !(9 == unknown-#length-unknown[14])) || !(1 == systemActive)) || !(unknown-#length-unknown[15] == 25)) || !(\valid[6] == 1)) || !(0 < unknown-#StackHeapBarrier-unknown)) || !(\valid[3] == 1)) || !(head == 0)) || !(\valid[11] == 1)) || !(unknown-#length-unknown[9] == 21)) || !(30 == unknown-#length-unknown[10])) || !(\valid[15] == 1)) || !(unknown-#length-unknown[6] == 21)) || !(1 == \valid[5])) || !(unknown-#length-unknown[8] == 9)) || !(unknown-#length-unknown[3] == 12)) || !(\valid[0] == 0)) || !(methaneLevelCritical == 0)) || !(unknown-#memory_int-unknown[1][1] == 0)) || !(\valid[1] == 1)) || (((((retValue_acc == 1 && \result == tmp) && retValue_acc == tmp___0) && retValue_acc == \result) && retValue_acc == \result) && tmp == \result)) || !(\valid[8] == 1)) || !(30 == unknown-#length-unknown[13])) || !(\valid[4] == 1)) || !(#NULL == 0)) || !(\valid[7] == 1)) || !(\valid[10] == 1)) || !(\valid[14] == 1)) || !(\valid[13] == 1)) || !(30 == unknown-#length-unknown[4])) || !(\valid[2] == 1)) || !(\valid[9] == 1)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || ((((\result == tmp && (((!(waterLevel < 2) && retValue_acc == 0) && retValue_acc == \result) || ((retValue_acc == 1 && waterLevel < 2) && retValue_acc == \result))) && retValue_acc == \result) && ((!(tmp == 0) && tmp___0 == 0) || (tmp == 0 && tmp___0 == 1))) && tmp == \result)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || waterLevel == 1) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 1) || !(waterLevel <= 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(waterLevel <= 1)) || 0 == systemActive) - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 1) || !(waterLevel <= 1)) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || 0 == systemActive) - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) - InvariantResult [Line: 435]: Loop Invariant Derived loop invariant: (((((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || ((retValue_acc == waterLevel && \result == tmp___0) && tmp == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || (((((pumpRunning == \old(pumpRunning) && waterLevel <= tmp___0) && pumpRunning == 0) && tmp___0 <= 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive)))) && ((((((pumpRunning == 0 && waterLevel <= 1) && tmp___0 <= 1) || !(\old(pumpRunning) == 1)) || ((waterLevel <= 1 && tmp___0 <= 1) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (((tmp___0 <= 2 && \old(waterLevel) == waterLevel) && !(tmp___0 <= 1)) && pumpRunning == 1)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(\old(waterLevel) <= 2)) || (((((pumpRunning == \old(pumpRunning) && waterLevel <= tmp___0) && pumpRunning == 0) && tmp___0 <= 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) - InvariantResult [Line: 429]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 2)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive)))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(head == 0)) || (tmp <= 0 && 0 <= tmp)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((!(\old(waterLevel) == 1) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) && !(\old(waterLevel) <= 0)) || 0 == systemActive))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 1) || (waterLevel <= 1 && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 740]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && waterLevel <= 2) && tmp == systemActive) && pumpRunning == 1) || ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) && tmp == systemActive) - InvariantResult [Line: 651]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 30 == unknown-#length-unknown[10]) && tmp == 1) && \valid[12] == 1) && \result == tmp) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && tmp == systemActive) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && retValue_acc == \result) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 21:05:34,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a5b52c-5759-4570-9923-7be4281359ef/bin/utaipan-6cKwYrpEi9/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