./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS --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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- 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-8393723 [2022-11-19 08:22:07,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:22:07,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:22:07,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:22:07,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:22:07,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:22:07,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:22:07,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:22:07,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:22:07,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:22:07,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:22:07,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:22:07,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:22:07,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:22:07,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:22:07,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:22:07,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:22:07,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:22:07,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:22:07,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:22:07,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:22:07,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:22:07,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:22:07,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:22:07,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:22:07,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:22:07,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:22:07,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:22:07,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:22:07,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:22:07,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:22:07,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:22:07,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:22:07,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:22:07,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:22:07,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:22:07,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:22:07,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:22:07,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:22:07,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:22:07,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:22:07,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:22:07,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:22:07,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:22:07,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:22:07,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:22:07,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:22:07,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:22:07,820 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:22:07,821 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:22:07,821 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:22:07,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:22:07,823 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:22:07,824 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:22:07,824 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:22:07,824 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:22:07,825 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:22:07,825 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:22:07,825 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:22:07,826 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:22:07,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:22:07,827 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:22:07,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:22:07,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:22:07,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:22:07,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:22:07,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:22:07,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:22:07,830 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:22:07,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:22:07,831 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:22:07,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:22:07,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:22:07,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:22:07,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:22:07,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:22:07,843 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:22:07,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:22:07,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:22:07,844 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:22:07,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:22:07,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:22:07,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:22:07,845 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_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2022-11-19 08:22:08,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:22:08,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:22:08,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:22:08,211 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:22:08,212 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:22:08,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-11-19 08:22:08,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/data/35583a572/0610efb4d053499cbbbc2d1223a8fc8d/FLAG1e241091a [2022-11-19 08:22:08,866 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:22:08,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-11-19 08:22:08,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/data/35583a572/0610efb4d053499cbbbc2d1223a8fc8d/FLAG1e241091a [2022-11-19 08:22:09,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/data/35583a572/0610efb4d053499cbbbc2d1223a8fc8d [2022-11-19 08:22:09,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:22:09,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:22:09,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:22:09,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:22:09,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:22:09,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448cd77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09, skipping insertion in model container [2022-11-19 08:22:09,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:22:09,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:22:09,433 WARN L234 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_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2022-11-19 08:22:09,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:22:09,635 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:22:09,670 WARN L234 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_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2022-11-19 08:22:09,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:22:09,763 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:22:09,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09 WrapperNode [2022-11-19 08:22:09,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:22:09,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:22:09,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:22:09,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:22:09,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,841 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 211 [2022-11-19 08:22:09,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:22:09,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:22:09,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:22:09,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:22:09,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:22:09,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:22:09,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:22:09,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:22:09,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (1/1) ... [2022-11-19 08:22:09,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:22:09,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:09,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:22:09,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:22:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:22:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 08:22:10,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 08:22:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 08:22:10,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 08:22:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 08:22:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 08:22:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 08:22:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 08:22:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 08:22:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 08:22:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 08:22:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 08:22:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-19 08:22:10,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-19 08:22:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-19 08:22:10,013 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-19 08:22:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:22:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 08:22:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 08:22:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:22:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:22:10,114 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:22:10,116 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:22:10,481 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:22:10,694 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:22:10,705 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:22:10,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:22:10 BoogieIcfgContainer [2022-11-19 08:22:10,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:22:10,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:22:10,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:22:10,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:22:10,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:22:09" (1/3) ... [2022-11-19 08:22:10,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d5c7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:22:10, skipping insertion in model container [2022-11-19 08:22:10,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:09" (2/3) ... [2022-11-19 08:22:10,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d5c7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:22:10, skipping insertion in model container [2022-11-19 08:22:10,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:22:10" (3/3) ... [2022-11-19 08:22:10,721 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2022-11-19 08:22:10,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:22:10,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:22:10,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:22:10,860 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;@22335e01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:22:10,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:22:10,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:22:10,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:22:10,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:10,881 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:10,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:10,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash -694718840, now seen corresponding path program 1 times [2022-11-19 08:22:10,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:10,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047946380] [2022-11-19 08:22:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:10,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:22:11,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:11,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047946380] [2022-11-19 08:22:11,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047946380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:11,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:11,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:22:11,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242551731] [2022-11-19 08:22:11,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:11,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:22:11,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:11,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:22:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:22:11,139 INFO L87 Difference]: Start difference. First operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:22:11,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:11,214 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-11-19 08:22:11,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:22:11,217 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-19 08:22:11,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:11,228 INFO L225 Difference]: With dead ends: 142 [2022-11-19 08:22:11,228 INFO L226 Difference]: Without dead ends: 67 [2022-11-19 08:22:11,232 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 [2022-11-19 08:22:11,235 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:11,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:22:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-19 08:22:11,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-19 08:22:11,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 50 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 08:22:11,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-11-19 08:22:11,287 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 21 [2022-11-19 08:22:11,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:11,288 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-11-19 08:22:11,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:22:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-19 08:22:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:22:11,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:11,292 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:11,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:22:11,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:11,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:11,293 INFO L85 PathProgramCache]: Analyzing trace with hash -523507675, now seen corresponding path program 1 times [2022-11-19 08:22:11,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:11,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846815168] [2022-11-19 08:22:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:11,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:22:11,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:11,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846815168] [2022-11-19 08:22:11,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846815168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:11,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:11,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:11,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554338296] [2022-11-19 08:22:11,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:11,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:11,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:11,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:11,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:11,440 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:22:11,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:11,513 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2022-11-19 08:22:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:11,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-19 08:22:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:11,526 INFO L225 Difference]: With dead ends: 106 [2022-11-19 08:22:11,526 INFO L226 Difference]: Without dead ends: 59 [2022-11-19 08:22:11,527 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 [2022-11-19 08:22:11,529 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:11,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 107 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:11,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-19 08:22:11,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-19 08:22:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 08:22:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2022-11-19 08:22:11,542 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 22 [2022-11-19 08:22:11,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:11,542 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2022-11-19 08:22:11,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:22:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2022-11-19 08:22:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 08:22:11,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:11,544 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:11,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:22:11,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:11,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:11,545 INFO L85 PathProgramCache]: Analyzing trace with hash -794396336, now seen corresponding path program 1 times [2022-11-19 08:22:11,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:11,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584415969] [2022-11-19 08:22:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:11,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:22:11,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:11,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584415969] [2022-11-19 08:22:11,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584415969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:11,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:11,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267126773] [2022-11-19 08:22:11,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:11,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:11,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:11,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:11,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:11,654 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:22:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:11,743 INFO L93 Difference]: Finished difference Result 173 states and 225 transitions. [2022-11-19 08:22:11,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:11,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-19 08:22:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:11,751 INFO L225 Difference]: With dead ends: 173 [2022-11-19 08:22:11,751 INFO L226 Difference]: Without dead ends: 116 [2022-11-19 08:22:11,752 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 [2022-11-19 08:22:11,758 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 61 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:11,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 143 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-19 08:22:11,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-11-19 08:22:11,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 85 states have internal predecessors, (95), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-19 08:22:11,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2022-11-19 08:22:11,803 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 25 [2022-11-19 08:22:11,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:11,804 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2022-11-19 08:22:11,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:22:11,805 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2022-11-19 08:22:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:22:11,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:11,807 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:11,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:22:11,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:11,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:11,813 INFO L85 PathProgramCache]: Analyzing trace with hash -695278126, now seen corresponding path program 1 times [2022-11-19 08:22:11,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:11,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866526782] [2022-11-19 08:22:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:11,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:22:12,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:12,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866526782] [2022-11-19 08:22:12,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866526782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:12,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:12,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:22:12,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558648850] [2022-11-19 08:22:12,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:12,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:22:12,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:12,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:22:12,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:22:12,082 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:22:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:12,439 INFO L93 Difference]: Finished difference Result 310 states and 411 transitions. [2022-11-19 08:22:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:22:12,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-19 08:22:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:12,444 INFO L225 Difference]: With dead ends: 310 [2022-11-19 08:22:12,451 INFO L226 Difference]: Without dead ends: 199 [2022-11-19 08:22:12,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:22:12,454 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 39 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:12,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 300 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:22:12,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-19 08:22:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 190. [2022-11-19 08:22:12,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 123 states have (on average 1.2926829268292683) internal successors, (159), 138 states have internal predecessors, (159), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2022-11-19 08:22:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 239 transitions. [2022-11-19 08:22:12,524 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 239 transitions. Word has length 28 [2022-11-19 08:22:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:12,525 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 239 transitions. [2022-11-19 08:22:12,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:22:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 239 transitions. [2022-11-19 08:22:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 08:22:12,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:12,534 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:12,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:22:12,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:12,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:12,535 INFO L85 PathProgramCache]: Analyzing trace with hash -401666507, now seen corresponding path program 1 times [2022-11-19 08:22:12,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:12,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911983869] [2022-11-19 08:22:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:12,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:22:12,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:12,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911983869] [2022-11-19 08:22:12,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911983869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:12,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:13,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:22:13,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332506851] [2022-11-19 08:22:13,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:13,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:22:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:13,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:22:13,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:22:13,011 INFO L87 Difference]: Start difference. First operand 190 states and 239 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:22:13,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:13,314 INFO L93 Difference]: Finished difference Result 553 states and 701 transitions. [2022-11-19 08:22:13,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:22:13,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2022-11-19 08:22:13,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:13,323 INFO L225 Difference]: With dead ends: 553 [2022-11-19 08:22:13,324 INFO L226 Difference]: Without dead ends: 365 [2022-11-19 08:22:13,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:22:13,330 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 190 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:13,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 302 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:13,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-19 08:22:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 351. [2022-11-19 08:22:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 230 states have (on average 1.2826086956521738) internal successors, (295), 255 states have internal predecessors, (295), 65 states have call successors, (65), 55 states have call predecessors, (65), 55 states have return successors, (83), 58 states have call predecessors, (83), 65 states have call successors, (83) [2022-11-19 08:22:13,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 443 transitions. [2022-11-19 08:22:13,416 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 443 transitions. Word has length 37 [2022-11-19 08:22:13,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:13,417 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 443 transitions. [2022-11-19 08:22:13,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:22:13,417 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 443 transitions. [2022-11-19 08:22:13,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 08:22:13,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:13,426 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:13,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:22:13,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:13,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1441650773, now seen corresponding path program 1 times [2022-11-19 08:22:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:13,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254709058] [2022-11-19 08:22:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:22:13,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:13,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254709058] [2022-11-19 08:22:13,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254709058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:13,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:13,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:22:13,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673824298] [2022-11-19 08:22:13,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:13,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:22:13,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:22:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:22:13,865 INFO L87 Difference]: Start difference. First operand 351 states and 443 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 08:22:14,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:14,650 INFO L93 Difference]: Finished difference Result 856 states and 1106 transitions. [2022-11-19 08:22:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:22:14,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 40 [2022-11-19 08:22:14,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:14,663 INFO L225 Difference]: With dead ends: 856 [2022-11-19 08:22:14,664 INFO L226 Difference]: Without dead ends: 598 [2022-11-19 08:22:14,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:22:14,668 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 249 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:14,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 281 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:22:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-11-19 08:22:14,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 542. [2022-11-19 08:22:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 360 states have (on average 1.2805555555555554) internal successors, (461), 398 states have internal predecessors, (461), 98 states have call successors, (98), 74 states have call predecessors, (98), 83 states have return successors, (129), 95 states have call predecessors, (129), 98 states have call successors, (129) [2022-11-19 08:22:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 688 transitions. [2022-11-19 08:22:14,775 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 688 transitions. Word has length 40 [2022-11-19 08:22:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:14,777 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 688 transitions. [2022-11-19 08:22:14,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 08:22:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 688 transitions. [2022-11-19 08:22:14,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 08:22:14,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:14,782 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:14,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:22:14,782 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:14,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:14,783 INFO L85 PathProgramCache]: Analyzing trace with hash 572408402, now seen corresponding path program 1 times [2022-11-19 08:22:14,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:14,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409977953] [2022-11-19 08:22:14,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:14,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:22:14,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:14,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409977953] [2022-11-19 08:22:14,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409977953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:14,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:14,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:22:14,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934078397] [2022-11-19 08:22:14,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:14,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:22:14,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:22:14,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:22:14,883 INFO L87 Difference]: Start difference. First operand 542 states and 688 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-19 08:22:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:15,062 INFO L93 Difference]: Finished difference Result 648 states and 822 transitions. [2022-11-19 08:22:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:22:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 61 [2022-11-19 08:22:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:15,065 INFO L225 Difference]: With dead ends: 648 [2022-11-19 08:22:15,065 INFO L226 Difference]: Without dead ends: 261 [2022-11-19 08:22:15,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:22:15,068 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 101 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:15,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 138 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:15,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-11-19 08:22:15,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-11-19 08:22:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 174 states have (on average 1.2298850574712643) internal successors, (214), 191 states have internal predecessors, (214), 46 states have call successors, (46), 35 states have call predecessors, (46), 40 states have return successors, (61), 46 states have call predecessors, (61), 46 states have call successors, (61) [2022-11-19 08:22:15,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 321 transitions. [2022-11-19 08:22:15,107 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 321 transitions. Word has length 61 [2022-11-19 08:22:15,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:15,107 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 321 transitions. [2022-11-19 08:22:15,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-19 08:22:15,108 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 321 transitions. [2022-11-19 08:22:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-19 08:22:15,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:15,110 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:15,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:22:15,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:15,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash 985723873, now seen corresponding path program 1 times [2022-11-19 08:22:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:15,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674426723] [2022-11-19 08:22:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:15,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 08:22:15,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:15,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674426723] [2022-11-19 08:22:15,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674426723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:22:15,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056528378] [2022-11-19 08:22:15,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:15,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:15,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:15,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:22:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:22:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:15,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-19 08:22:15,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:22:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:15,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:22:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 08:22:16,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056528378] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:22:16,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1904008614] [2022-11-19 08:22:16,256 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-19 08:22:16,257 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:22:16,262 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:22:16,268 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:22:16,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:22:20,612 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2022-11-19 08:22:20,623 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-19 08:22:20,826 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 54 for LOIs [2022-11-19 08:22:20,842 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-19 08:22:20,991 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 29 for LOIs [2022-11-19 08:22:20,994 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:22:25,563 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7125#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= ~pumpRunning~0 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 2 |old(~waterLevel~0)|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 2 |timeShift_getWaterLevel_~retValue_acc~10#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-19 08:22:25,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:22:25,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:22:25,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-11-19 08:22:25,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493830715] [2022-11-19 08:22:25,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:22:25,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:22:25,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:25,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:22:25,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1388, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 08:22:25,571 INFO L87 Difference]: Start difference. First operand 261 states and 321 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 08:22:26,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:26,172 INFO L93 Difference]: Finished difference Result 831 states and 1046 transitions. [2022-11-19 08:22:26,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:22:26,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 70 [2022-11-19 08:22:26,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:26,177 INFO L225 Difference]: With dead ends: 831 [2022-11-19 08:22:26,177 INFO L226 Difference]: Without dead ends: 572 [2022-11-19 08:22:26,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 175 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=213, Invalid=1767, Unknown=0, NotChecked=0, Total=1980 [2022-11-19 08:22:26,180 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 197 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:26,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 485 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:22:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-11-19 08:22:26,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 413. [2022-11-19 08:22:26,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 276 states have (on average 1.2065217391304348) internal successors, (333), 303 states have internal predecessors, (333), 68 states have call successors, (68), 57 states have call predecessors, (68), 68 states have return successors, (108), 70 states have call predecessors, (108), 68 states have call successors, (108) [2022-11-19 08:22:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 509 transitions. [2022-11-19 08:22:26,223 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 509 transitions. Word has length 70 [2022-11-19 08:22:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:26,225 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 509 transitions. [2022-11-19 08:22:26,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 08:22:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 509 transitions. [2022-11-19 08:22:26,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 08:22:26,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:26,228 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:26,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:22:26,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:26,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:26,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:26,440 INFO L85 PathProgramCache]: Analyzing trace with hash 153709515, now seen corresponding path program 1 times [2022-11-19 08:22:26,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:26,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882805718] [2022-11-19 08:22:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:26,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:22:26,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:26,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882805718] [2022-11-19 08:22:26,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882805718] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:22:26,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146884071] [2022-11-19 08:22:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:26,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:26,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:26,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:22:26,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:22:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:26,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 08:22:26,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:22:26,733 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 08:22:26,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:22:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:22:26,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146884071] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:22:26,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2017805602] [2022-11-19 08:22:26,859 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-19 08:22:26,859 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:22:26,860 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:22:26,860 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:22:26,861 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:22:35,515 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 141 for LOIs [2022-11-19 08:22:35,554 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-19 08:22:35,804 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-19 08:22:35,829 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 63 for LOIs [2022-11-19 08:22:36,311 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 48 for LOIs [2022-11-19 08:22:36,319 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 42 for LOIs [2022-11-19 08:22:36,325 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:22:43,916 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9463#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483648)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 08:22:43,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:22:43,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:22:43,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-11-19 08:22:43,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667198118] [2022-11-19 08:22:43,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:22:43,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:22:43,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:43,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:22:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1827, Unknown=0, NotChecked=0, Total=2070 [2022-11-19 08:22:43,920 INFO L87 Difference]: Start difference. First operand 413 states and 509 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:22:44,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:44,599 INFO L93 Difference]: Finished difference Result 815 states and 1034 transitions. [2022-11-19 08:22:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:22:44,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2022-11-19 08:22:44,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:44,603 INFO L225 Difference]: With dead ends: 815 [2022-11-19 08:22:44,604 INFO L226 Difference]: Without dead ends: 541 [2022-11-19 08:22:44,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=328, Invalid=2864, Unknown=0, NotChecked=0, Total=3192 [2022-11-19 08:22:44,608 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 189 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:44,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 518 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:22:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-11-19 08:22:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 499. [2022-11-19 08:22:44,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 333 states have (on average 1.1861861861861862) internal successors, (395), 367 states have internal predecessors, (395), 84 states have call successors, (84), 72 states have call predecessors, (84), 81 states have return successors, (131), 83 states have call predecessors, (131), 84 states have call successors, (131) [2022-11-19 08:22:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 610 transitions. [2022-11-19 08:22:44,656 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 610 transitions. Word has length 73 [2022-11-19 08:22:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:44,660 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 610 transitions. [2022-11-19 08:22:44,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:22:44,660 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 610 transitions. [2022-11-19 08:22:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-19 08:22:44,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:44,662 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:44,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:22:44,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:44,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:22:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash -780817999, now seen corresponding path program 1 times [2022-11-19 08:22:44,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:44,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123372546] [2022-11-19 08:22:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:44,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 08:22:45,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:45,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123372546] [2022-11-19 08:22:45,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123372546] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:22:45,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805993920] [2022-11-19 08:22:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:45,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:45,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:45,609 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:22:45,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:22:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:45,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-19 08:22:45,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:22:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:22:46,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:22:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 54 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 08:22:47,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805993920] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:22:47,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1842157051] [2022-11-19 08:22:47,064 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-19 08:22:47,064 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:22:47,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:22:47,065 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:22:47,065 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:22:50,274 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 43 for LOIs [2022-11-19 08:22:50,280 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-19 08:22:50,587 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 41 for LOIs [2022-11-19 08:22:50,591 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 29 for LOIs [2022-11-19 08:22:50,685 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 58 for LOIs [2022-11-19 08:22:50,695 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:22:56,317 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12123#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |old(~pumpRunning~0)|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 2 |old(~waterLevel~0)|) (<= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 2 |timeShift_getWaterLevel_~retValue_acc~10#1|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 08:22:56,317 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:22:56,317 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:22:56,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 11] total 29 [2022-11-19 08:22:56,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530112322] [2022-11-19 08:22:56,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:22:56,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-19 08:22:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:56,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-19 08:22:56,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=3431, Unknown=0, NotChecked=0, Total=3906 [2022-11-19 08:22:56,321 INFO L87 Difference]: Start difference. First operand 499 states and 610 transitions. Second operand has 29 states, 28 states have (on average 5.642857142857143) internal successors, (158), 29 states have internal predecessors, (158), 16 states have call successors, (38), 7 states have call predecessors, (38), 12 states have return successors, (36), 16 states have call predecessors, (36), 15 states have call successors, (36) [2022-11-19 08:22:59,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:59,373 INFO L93 Difference]: Finished difference Result 1114 states and 1380 transitions. [2022-11-19 08:22:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-19 08:22:59,374 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.642857142857143) internal successors, (158), 29 states have internal predecessors, (158), 16 states have call successors, (38), 7 states have call predecessors, (38), 12 states have return successors, (36), 16 states have call predecessors, (36), 15 states have call successors, (36) Word has length 103 [2022-11-19 08:22:59,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:59,374 INFO L225 Difference]: With dead ends: 1114 [2022-11-19 08:22:59,375 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:22:59,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 287 SyntacticMatches, 5 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4574 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1592, Invalid=10398, Unknown=0, NotChecked=0, Total=11990 [2022-11-19 08:22:59,381 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1054 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:59,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 525 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 08:22:59,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:22:59,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:22:59,382 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) [2022-11-19 08:22:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:22:59,383 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2022-11-19 08:22:59,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:59,383 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:22:59,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.642857142857143) internal successors, (158), 29 states have internal predecessors, (158), 16 states have call successors, (38), 7 states have call predecessors, (38), 12 states have return successors, (36), 16 states have call predecessors, (36), 15 states have call successors, (36) [2022-11-19 08:22:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:22:59,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:22:59,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:22:59,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:22:59,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:59,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:23:06,273 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 185 192) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-19 08:23:06,273 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 185 192) no Hoare annotation was computed. [2022-11-19 08:23:06,273 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 101 107) no Hoare annotation was computed. [2022-11-19 08:23:06,273 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 101 107) the Hoare annotation is: true [2022-11-19 08:23:06,274 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 932 943) the Hoare annotation is: true [2022-11-19 08:23:06,274 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 932 943) no Hoare annotation was computed. [2022-11-19 08:23:06,274 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 355 384) no Hoare annotation was computed. [2022-11-19 08:23:06,274 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 355 384) the Hoare annotation is: true [2022-11-19 08:23:06,274 INFO L902 garLoopResultBuilder]: At program point L380(lines 355 384) the Hoare annotation is: true [2022-11-19 08:23:06,274 INFO L899 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2022-11-19 08:23:06,275 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2022-11-19 08:23:06,275 INFO L902 garLoopResultBuilder]: At program point L369-1(lines 369 373) the Hoare annotation is: true [2022-11-19 08:23:06,275 INFO L902 garLoopResultBuilder]: At program point L365-2(lines 365 379) the Hoare annotation is: true [2022-11-19 08:23:06,275 INFO L902 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: true [2022-11-19 08:23:06,275 INFO L899 garLoopResultBuilder]: For program point L361-1(line 361) no Hoare annotation was computed. [2022-11-19 08:23:06,275 INFO L895 garLoopResultBuilder]: At program point L886(line 886) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse10 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse11 (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse12) .cse9) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12))))) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse8 .cse11)) (.cse5 (and (not .cse1) .cse8 .cse11 .cse10)) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse3 .cse4 .cse5 .cse6 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse2) (or .cse0 .cse6 .cse2 .cse7) (or .cse0 .cse3 (and .cse1 .cse8 .cse9 .cse10) .cse6) (or .cse3 .cse4 .cse5 .cse6 .cse7))))) [2022-11-19 08:23:06,276 INFO L899 garLoopResultBuilder]: For program point L886-1(line 886) no Hoare annotation was computed. [2022-11-19 08:23:06,276 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 77 99) no Hoare annotation was computed. [2022-11-19 08:23:06,276 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2022-11-19 08:23:06,276 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 156) no Hoare annotation was computed. [2022-11-19 08:23:06,277 INFO L895 garLoopResultBuilder]: At program point L871(line 871) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse13 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (not (= 0 ~systemActive~0))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse12 (and .cse8 .cse13)) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse3 .cse7 .cse5) (or .cse6 .cse7 (and .cse8 (or .cse3 (= ~waterLevel~0 1)))) (or .cse6 .cse2 .cse9 (and .cse10 .cse8) .cse11) (or .cse0 .cse6 .cse12 .cse2 .cse9) (or .cse0 .cse2 (and .cse10 .cse13) .cse4 .cse11) (or .cse0 .cse1 .cse6 .cse12 .cse2) (or .cse1 .cse6 .cse2 (and .cse10 .cse8 .cse3) .cse11)))) [2022-11-19 08:23:06,278 INFO L895 garLoopResultBuilder]: At program point L871-1(line 871) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret46#1|)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (= ~pumpRunning~0 0)) (.cse8 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and .cse9 .cse7)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 (and .cse6 (or .cse7 (= ~waterLevel~0 1)))) (or .cse8 .cse0 (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse4 .cse0 (and .cse6 .cse9 .cse7) .cse2) (or .cse8 (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1) (or .cse4 .cse7 .cse2 .cse5 .cse3)))) [2022-11-19 08:23:06,278 INFO L899 garLoopResultBuilder]: For program point L888(lines 888 898) no Hoare annotation was computed. [2022-11-19 08:23:06,278 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 (not (= 0 ~systemActive~0))))) [2022-11-19 08:23:06,279 INFO L895 garLoopResultBuilder]: At program point L149(line 149) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (< 0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and .cse2 .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse0 .cse5 (and .cse1 .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse0 .cse5) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-19 08:23:06,279 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 901) no Hoare annotation was computed. [2022-11-19 08:23:06,279 INFO L895 garLoopResultBuilder]: At program point L884-1(lines 876 904) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse11 (= 1 ~systemActive~0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse16 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2))) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (and .cse13 .cse16)) (.cse4 (not .cse11)) (.cse5 (not .cse1)) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse6 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse3 (= ~waterLevel~0 1)) (.cse15 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse2) (let ((.cse7 (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse12) .cse13) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse4 (and .cse5 .cse6 .cse7 .cse8) .cse9 (and .cse10 .cse1 .cse11 .cse6 .cse7) (= |old(~switchedOnBeforeTS~0)| 0))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse4 (and .cse1 .cse11 .cse6 .cse13 .cse8)) (or .cse14 .cse0 .cse9 .cse2 .cse15) (or .cse0 .cse4 (not (= |old(~waterLevel~0)| 2)) .cse16) (or .cse14 .cse4 (and .cse5 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse6 .cse8) .cse9 (and .cse10 .cse1 .cse11 .cse6 .cse3) .cse15)))) [2022-11-19 08:23:06,280 INFO L895 garLoopResultBuilder]: At program point L145(line 145) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (< 0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and .cse2 .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse0 .cse5 (and .cse1 .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse0 .cse5) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-19 08:23:06,280 INFO L895 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (< 0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and .cse2 .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse0 .cse5 (and .cse1 .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse0 .cse5) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-19 08:23:06,280 INFO L899 garLoopResultBuilder]: For program point L141-1(line 141) no Hoare annotation was computed. [2022-11-19 08:23:06,281 INFO L895 garLoopResultBuilder]: At program point L154(line 154) the Hoare annotation is: (let ((.cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse3 .cse0 .cse1) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-19 08:23:06,281 INFO L895 garLoopResultBuilder]: At program point L154-1(lines 135 159) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse5 (not .cse2)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and .cse1 .cse2 (= ~waterLevel~0 1)) .cse3 .cse4 (and .cse5 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse6) (not (<= 2 |old(~waterLevel~0)|))) (or .cse7 (and (= 2 ~waterLevel~0) .cse3) .cse0 (and .cse2 .cse3 .cse6) .cse4) (let ((.cse8 (let ((.cse9 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse9) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse9))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse5 .cse8 .cse6) .cse0 (and .cse1 .cse2 .cse8) .cse4 (= |old(~switchedOnBeforeTS~0)| 0))) (or .cse7 (not (= 0 ~systemActive~0)))))) [2022-11-19 08:23:06,281 INFO L899 garLoopResultBuilder]: For program point L889(lines 889 895) no Hoare annotation was computed. [2022-11-19 08:23:06,281 INFO L895 garLoopResultBuilder]: At program point L88-1(lines 88 94) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse3 (= ~waterLevel~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (not (= 0 ~systemActive~0))) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (not .cse2)) (.cse7 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5 (and .cse6 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse7) .cse8) (or .cse9 (and (= 2 ~waterLevel~0) .cse4) .cse0 (and .cse2 .cse4 .cse7) .cse5) (or .cse9 .cse2 .cse10) (or .cse9 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse10) (or .cse9 .cse4 .cse5 .cse10 .cse8) (let ((.cse11 (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse12) .cse4) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse6 .cse11 .cse7) .cse0 (and .cse1 .cse2 .cse11) .cse5 (= |old(~switchedOnBeforeTS~0)| 0)))))) [2022-11-19 08:23:06,282 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 74 100) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse13 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (not (= 0 ~systemActive~0))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse12 (and .cse8 .cse13)) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse3 .cse7 .cse5) (or .cse6 .cse7 (and .cse8 (or .cse3 (= ~waterLevel~0 1)))) (or .cse6 .cse2 .cse9 (and .cse10 .cse8) .cse11) (or .cse0 .cse6 .cse12 .cse2 .cse9) (or .cse0 .cse2 (and .cse10 .cse13) .cse4 .cse11) (or .cse0 .cse1 .cse6 .cse12 .cse2) (or .cse1 .cse6 .cse2 (and .cse10 .cse8 .cse3) .cse11)))) [2022-11-19 08:23:06,282 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 74 100) no Hoare annotation was computed. [2022-11-19 08:23:06,282 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-19 08:23:06,282 INFO L895 garLoopResultBuilder]: At program point L345(lines 296 346) the Hoare annotation is: false [2022-11-19 08:23:06,283 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 339) no Hoare annotation was computed. [2022-11-19 08:23:06,283 INFO L895 garLoopResultBuilder]: At program point L333-2(lines 327 340) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse2 .cse0 .cse1 .cse3))) [2022-11-19 08:23:06,283 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 08:23:06,283 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 323) no Hoare annotation was computed. [2022-11-19 08:23:06,283 INFO L899 garLoopResultBuilder]: For program point L317-1(lines 317 323) no Hoare annotation was computed. [2022-11-19 08:23:06,283 INFO L895 garLoopResultBuilder]: At program point L441(lines 441 448) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-19 08:23:06,284 INFO L902 garLoopResultBuilder]: At program point L441-2(lines 441 448) the Hoare annotation is: true [2022-11-19 08:23:06,284 INFO L895 garLoopResultBuilder]: At program point L342(lines 297 344) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2022-11-19 08:23:06,284 INFO L895 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2022-11-19 08:23:06,284 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 278) no Hoare annotation was computed. [2022-11-19 08:23:06,284 INFO L895 garLoopResultBuilder]: At program point L272-1(lines 272 278) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 08:23:06,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:23:06,285 INFO L899 garLoopResultBuilder]: For program point L298(lines 297 344) no Hoare annotation was computed. [2022-11-19 08:23:06,285 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 340) no Hoare annotation was computed. [2022-11-19 08:23:06,285 INFO L895 garLoopResultBuilder]: At program point L319(line 319) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse2 .cse0 .cse1 .cse3))) [2022-11-19 08:23:06,285 INFO L902 garLoopResultBuilder]: At program point L348(lines 287 352) the Hoare annotation is: true [2022-11-19 08:23:06,285 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 313) no Hoare annotation was computed. [2022-11-19 08:23:06,285 INFO L899 garLoopResultBuilder]: For program point L307-1(lines 307 313) no Hoare annotation was computed. [2022-11-19 08:23:06,286 INFO L895 garLoopResultBuilder]: At program point L274(line 274) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2022-11-19 08:23:06,286 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 920 931) no Hoare annotation was computed. [2022-11-19 08:23:06,286 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 920 931) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse2) (or .cse0 .cse3 .cse1 .cse2) (or .cse3 .cse2 (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) (or .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-19 08:23:06,286 INFO L895 garLoopResultBuilder]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2022-11-19 08:23:06,286 INFO L899 garLoopResultBuilder]: For program point L128-1(lines 109 133) no Hoare annotation was computed. [2022-11-19 08:23:06,287 INFO L895 garLoopResultBuilder]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0) .cse2) (or .cse0 (and (or (= |processEnvironment__wrappee__methaneQuery_~tmp~0#1| 0) (<= 2 ~waterLevel~0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse1 .cse2))) [2022-11-19 08:23:06,287 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 125) no Hoare annotation was computed. [2022-11-19 08:23:06,287 INFO L895 garLoopResultBuilder]: At program point L113(lines 113 130) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-19 08:23:06,287 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 109 133) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-19 08:23:06,287 INFO L895 garLoopResultBuilder]: At program point L173(line 173) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-19 08:23:06,288 INFO L895 garLoopResultBuilder]: At program point L173-1(line 173) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-19 08:23:06,288 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 109 133) no Hoare annotation was computed. [2022-11-19 08:23:06,288 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 204 212) no Hoare annotation was computed. [2022-11-19 08:23:06,288 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 204 212) the Hoare annotation is: true [2022-11-19 08:23:06,288 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 193 203) the Hoare annotation is: true [2022-11-19 08:23:06,288 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 193 203) no Hoare annotation was computed. [2022-11-19 08:23:06,292 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:06,294 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:23:06,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:23:06 BoogieIcfgContainer [2022-11-19 08:23:06,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:23:06,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:23:06,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:23:06,321 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:23:06,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:22:10" (3/4) ... [2022-11-19 08:23:06,324 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:23:06,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-19 08:23:06,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 08:23:06,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 08:23:06,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 08:23:06,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 08:23:06,331 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 08:23:06,331 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-19 08:23:06,331 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 08:23:06,331 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-19 08:23:06,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-11-19 08:23:06,339 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 08:23:06,339 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-19 08:23:06,340 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:23:06,340 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:23:06,365 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2022-11-19 08:23:06,366 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) [2022-11-19 08:23:06,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && (((((\old(waterLevel) == waterLevel && tmp == 2) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || tmp == 2)) && ((((((\old(waterLevel) == waterLevel && tmp == 2) || !(1 == systemActive)) || ((((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1)) || !(2 <= \old(waterLevel))) [2022-11-19 08:23:06,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-19 08:23:06,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-19 08:23:06,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-19 08:23:06,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-19 08:23:06,396 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:23:06,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:23:06,397 INFO L158 Benchmark]: Toolchain (without parser) took 57220.92ms. Allocated memory was 107.0MB in the beginning and 633.3MB in the end (delta: 526.4MB). Free memory was 60.5MB in the beginning and 330.2MB in the end (delta: -269.7MB). Peak memory consumption was 257.0MB. Max. memory is 16.1GB. [2022-11-19 08:23:06,397 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:23:06,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.70ms. Allocated memory is still 107.0MB. Free memory was 60.3MB in the beginning and 72.1MB in the end (delta: -11.8MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-11-19 08:23:06,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.37ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 69.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:23:06,398 INFO L158 Benchmark]: Boogie Preprocessor took 65.01ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 68.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:23:06,399 INFO L158 Benchmark]: RCFGBuilder took 795.26ms. Allocated memory is still 107.0MB. Free memory was 68.2MB in the beginning and 43.4MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 08:23:06,399 INFO L158 Benchmark]: TraceAbstraction took 55609.21ms. Allocated memory was 107.0MB in the beginning and 633.3MB in the end (delta: 526.4MB). Free memory was 42.7MB in the beginning and 335.4MB in the end (delta: -292.7MB). Peak memory consumption was 346.6MB. Max. memory is 16.1GB. [2022-11-19 08:23:06,399 INFO L158 Benchmark]: Witness Printer took 76.28ms. Allocated memory is still 633.3MB. Free memory was 335.4MB in the beginning and 330.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:23:06,401 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.70ms. Allocated memory is still 107.0MB. Free memory was 60.3MB in the beginning and 72.1MB in the end (delta: -11.8MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.37ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 69.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.01ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 68.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 795.26ms. Allocated memory is still 107.0MB. Free memory was 68.2MB in the beginning and 43.4MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 55609.21ms. Allocated memory was 107.0MB in the beginning and 633.3MB in the end (delta: 526.4MB). Free memory was 42.7MB in the beginning and 335.4MB in the end (delta: -292.7MB). Peak memory consumption was 346.6MB. Max. memory is 16.1GB. * Witness Printer took 76.28ms. Allocated memory is still 633.3MB. Free memory was 335.4MB in the beginning and 330.2MB 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: 54]: 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 10 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.5s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2112 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2094 mSDsluCounter, 2875 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1975 mSDsCounter, 1131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2802 IncrementalHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1131 mSolverCounterUnsat, 900 mSDtfsCounter, 2802 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 910 GetRequests, 663 SyntacticMatches, 10 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6221 ImplicationChecksByTransitivity, 20.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=542occurred in iteration=6, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 283 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 1629 PreInvPairs, 1884 NumberOfFragments, 2155 HoareAnnotationTreeSize, 1629 FomulaSimplifications, 6071 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 40 FomulaSimplificationsInter, 26154 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 726 NumberOfCodeBlocks, 726 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 956 ConstructedInterpolants, 0 QuantifiedInterpolants, 3033 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1107 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 369/473 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: ((((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((waterLevel <= 1 && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || (((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 287]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 355]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && (((((\old(waterLevel) == waterLevel && tmp == 2) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || tmp == 2)) && ((((((\old(waterLevel) == waterLevel && tmp == 2) || !(1 == systemActive)) || ((((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) RESULT: Ultimate proved your program to be correct! [2022-11-19 08:23:06,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4b809c-b721-48a4-b7fd-f1571fbde9fb/bin/utaipan-I9t0OCRTmS/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