./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW --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 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a --- 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-4e7fbc6 [2022-11-23 14:05:46,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:05:46,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:05:46,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:05:46,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:05:46,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:05:46,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:05:46,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:05:46,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:05:46,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:05:46,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:05:46,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:05:46,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:05:46,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:05:46,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:05:46,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:05:46,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:05:46,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:05:46,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:05:46,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:05:46,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:05:46,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:05:46,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:05:46,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:05:46,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:05:46,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:05:46,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:05:46,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:05:46,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:05:46,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:05:46,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:05:46,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:05:46,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:05:46,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:05:46,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:05:46,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:05:46,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:05:46,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:05:46,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:05:46,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:05:46,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:05:46,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:05:46,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:05:46,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:05:46,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:05:46,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:05:46,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:05:46,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:05:46,798 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:05:46,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:05:46,799 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:05:46,799 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:05:46,800 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:05:46,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:05:46,801 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:05:46,801 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:05:46,801 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:05:46,802 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:05:46,802 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:05:46,802 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:05:46,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:05:46,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:05:46,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:05:46,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:05:46,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:05:46,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:05:46,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:05:46,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:05:46,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:05:46,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:05:46,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:05:46,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:05:46,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:05:46,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:05:46,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:46,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:05:46,808 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:05:46,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:05:46,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:05:46,808 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:05:46,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:05:46,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:05:46,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:05:46,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a [2022-11-23 14:05:47,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:05:47,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:05:47,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:05:47,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:05:47,184 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:05:47,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2022-11-23 14:05:50,307 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:05:50,588 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:05:50,589 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2022-11-23 14:05:50,600 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/data/0d2ad4857/84247de917ae47a5b505899372eea73d/FLAG1a0429fed [2022-11-23 14:05:50,617 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/data/0d2ad4857/84247de917ae47a5b505899372eea73d [2022-11-23 14:05:50,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:05:50,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:05:50,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:50,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:05:50,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:05:50,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:50" (1/1) ... [2022-11-23 14:05:50,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7197b213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:50, skipping insertion in model container [2022-11-23 14:05:50,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:50" (1/1) ... [2022-11-23 14:05:50,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:05:50,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:05:50,961 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2022-11-23 14:05:50,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:50,990 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:05:51,082 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2022-11-23 14:05:51,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:51,100 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:05:51,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51 WrapperNode [2022-11-23 14:05:51,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:51,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:51,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:05:51,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:05:51,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,149 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 215 [2022-11-23 14:05:51,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:51,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:05:51,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:05:51,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:05:51,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,176 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:05:51,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:05:51,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:05:51,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:05:51,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (1/1) ... [2022-11-23 14:05:51,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:51,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:51,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:05:51,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:05:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:05:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 14:05:51,273 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 14:05:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 14:05:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 14:05:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 14:05:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 14:05:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 14:05:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 14:05:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:05:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:05:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 14:05:51,276 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 14:05:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:05:51,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:05:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-23 14:05:51,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-23 14:05:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 14:05:51,277 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 14:05:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:05:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 14:05:51,277 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 14:05:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:05:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:05:51,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:05:51,361 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:05:51,690 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:05:51,945 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:05:51,952 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:05:51,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:51 BoogieIcfgContainer [2022-11-23 14:05:51,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:05:51,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:05:51,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:05:51,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:05:51,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:50" (1/3) ... [2022-11-23 14:05:51,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55781220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:51, skipping insertion in model container [2022-11-23 14:05:51,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:51" (2/3) ... [2022-11-23 14:05:51,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55781220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:51, skipping insertion in model container [2022-11-23 14:05:51,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:51" (3/3) ... [2022-11-23 14:05:51,970 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2022-11-23 14:05:51,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:05:51,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:05:52,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:05:52,083 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;@6fd77647, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:05:52,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:05:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 54 states have internal predecessors, (61), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-23 14:05:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:05:52,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:52,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:52,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1405484699, now seen corresponding path program 1 times [2022-11-23 14:05:52,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:52,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362235129] [2022-11-23 14:05:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:05:52,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:52,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362235129] [2022-11-23 14:05:52,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362235129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:52,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:52,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:05:52,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111645568] [2022-11-23 14:05:52,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:52,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:05:52,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:52,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:05:52,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:05:52,355 INFO L87 Difference]: Start difference. First operand has 74 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 54 states have internal predecessors, (61), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:05:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:52,450 INFO L93 Difference]: Finished difference Result 146 states and 195 transitions. [2022-11-23 14:05:52,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:05:52,458 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-23 14:05:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:52,470 INFO L225 Difference]: With dead ends: 146 [2022-11-23 14:05:52,470 INFO L226 Difference]: Without dead ends: 69 [2022-11-23 14:05:52,475 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 [2022-11-23 14:05:52,481 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:52,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:05:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-23 14:05:52,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-23 14:05:52,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 50 states have internal predecessors, (53), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-23 14:05:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2022-11-23 14:05:52,547 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 16 [2022-11-23 14:05:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:52,548 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-11-23 14:05:52,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:05:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-11-23 14:05:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:05:52,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:52,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:52,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:05:52,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:52,556 INFO L85 PathProgramCache]: Analyzing trace with hash -202993795, now seen corresponding path program 1 times [2022-11-23 14:05:52,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:52,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278209424] [2022-11-23 14:05:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:05:52,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:52,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278209424] [2022-11-23 14:05:52,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278209424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:52,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:52,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:05:52,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179478310] [2022-11-23 14:05:52,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:52,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:05:52,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:52,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:05:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:05:52,697 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:05:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:52,764 INFO L93 Difference]: Finished difference Result 115 states and 147 transitions. [2022-11-23 14:05:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:05:52,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 14:05:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:52,767 INFO L225 Difference]: With dead ends: 115 [2022-11-23 14:05:52,768 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 14:05:52,769 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 [2022-11-23 14:05:52,771 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:52,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:05:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 14:05:52,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 14:05:52,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 45 states have internal predecessors, (47), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:05:52,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-11-23 14:05:52,785 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 17 [2022-11-23 14:05:52,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:52,786 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-11-23 14:05:52,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:05:52,786 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-11-23 14:05:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 14:05:52,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:52,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:52,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:05:52,788 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:52,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1432553358, now seen corresponding path program 1 times [2022-11-23 14:05:52,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:52,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264439894] [2022-11-23 14:05:52,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:52,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:05:53,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:53,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264439894] [2022-11-23 14:05:53,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264439894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:53,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:53,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:05:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669837466] [2022-11-23 14:05:53,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:53,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:05:53,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:53,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:05:53,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:05:53,039 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:05:53,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:53,186 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2022-11-23 14:05:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:05:53,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-23 14:05:53,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:53,188 INFO L225 Difference]: With dead ends: 120 [2022-11-23 14:05:53,188 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 14:05:53,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:05:53,190 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 72 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:53,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 81 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:05:53,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 14:05:53,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 14:05:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 45 states have internal predecessors, (46), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:05:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2022-11-23 14:05:53,212 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 19 [2022-11-23 14:05:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:53,212 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2022-11-23 14:05:53,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:05:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2022-11-23 14:05:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:05:53,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:53,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:53,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:05:53,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:53,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:53,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1581525674, now seen corresponding path program 1 times [2022-11-23 14:05:53,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:53,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812487035] [2022-11-23 14:05:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:53,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:05:53,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:53,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812487035] [2022-11-23 14:05:53,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812487035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:53,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:53,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:05:53,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888109588] [2022-11-23 14:05:53,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:53,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:05:53,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:05:53,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:05:53,468 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:05:53,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:53,870 INFO L93 Difference]: Finished difference Result 190 states and 234 transitions. [2022-11-23 14:05:53,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:05:53,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-23 14:05:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:53,879 INFO L225 Difference]: With dead ends: 190 [2022-11-23 14:05:53,879 INFO L226 Difference]: Without dead ends: 131 [2022-11-23 14:05:53,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:05:53,887 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 122 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:53,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 164 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:05:53,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-23 14:05:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 125. [2022-11-23 14:05:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 87 states have internal predecessors, (95), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-23 14:05:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2022-11-23 14:05:53,933 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 30 [2022-11-23 14:05:53,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:53,933 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2022-11-23 14:05:53,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:05:53,934 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2022-11-23 14:05:53,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 14:05:53,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:53,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:53,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:05:53,935 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:53,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:53,936 INFO L85 PathProgramCache]: Analyzing trace with hash -239096315, now seen corresponding path program 1 times [2022-11-23 14:05:53,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:53,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410378537] [2022-11-23 14:05:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:53,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:05:54,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:54,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410378537] [2022-11-23 14:05:54,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410378537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:54,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:54,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:05:54,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009193782] [2022-11-23 14:05:54,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:54,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:05:54,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:54,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:05:54,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:05:54,194 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 14:05:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:54,451 INFO L93 Difference]: Finished difference Result 137 states and 158 transitions. [2022-11-23 14:05:54,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:05:54,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-23 14:05:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:54,457 INFO L225 Difference]: With dead ends: 137 [2022-11-23 14:05:54,457 INFO L226 Difference]: Without dead ends: 135 [2022-11-23 14:05:54,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:05:54,465 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 77 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:54,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 169 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:05:54,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-23 14:05:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2022-11-23 14:05:54,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 87 states have internal predecessors, (93), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-23 14:05:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2022-11-23 14:05:54,501 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 35 [2022-11-23 14:05:54,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:54,502 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2022-11-23 14:05:54,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 14:05:54,502 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2022-11-23 14:05:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 14:05:54,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:54,508 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] [2022-11-23 14:05:54,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:05:54,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:54,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1551780452, now seen corresponding path program 1 times [2022-11-23 14:05:54,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:54,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312723408] [2022-11-23 14:05:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:54,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:05:54,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:54,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312723408] [2022-11-23 14:05:54,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312723408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:54,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:54,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:05:54,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382451358] [2022-11-23 14:05:54,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:54,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:05:54,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:54,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:05:54,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:05:54,904 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 14:05:55,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:55,136 INFO L93 Difference]: Finished difference Result 305 states and 355 transitions. [2022-11-23 14:05:55,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:05:55,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2022-11-23 14:05:55,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:55,138 INFO L225 Difference]: With dead ends: 305 [2022-11-23 14:05:55,139 INFO L226 Difference]: Without dead ends: 182 [2022-11-23 14:05:55,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:05:55,141 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 79 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:55,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 315 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:05:55,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-23 14:05:55,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 164. [2022-11-23 14:05:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 105 states have (on average 1.161904761904762) internal successors, (122), 114 states have internal predecessors, (122), 28 states have call successors, (28), 25 states have call predecessors, (28), 30 states have return successors, (35), 30 states have call predecessors, (35), 28 states have call successors, (35) [2022-11-23 14:05:55,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 185 transitions. [2022-11-23 14:05:55,170 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 185 transitions. Word has length 40 [2022-11-23 14:05:55,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:55,171 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 185 transitions. [2022-11-23 14:05:55,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 14:05:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 185 transitions. [2022-11-23 14:05:55,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:05:55,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:55,173 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, 1, 1, 1] [2022-11-23 14:05:55,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:05:55,173 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:55,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:55,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1871851049, now seen corresponding path program 1 times [2022-11-23 14:05:55,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:55,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518606368] [2022-11-23 14:05:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:05:55,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:55,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518606368] [2022-11-23 14:05:55,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518606368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:55,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:55,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 14:05:55,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291005819] [2022-11-23 14:05:55,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:55,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:05:55,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:55,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:05:55,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:05:55,596 INFO L87 Difference]: Start difference. First operand 164 states and 185 transitions. Second operand has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 14:05:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:56,598 INFO L93 Difference]: Finished difference Result 414 states and 515 transitions. [2022-11-23 14:05:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 14:05:56,599 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 43 [2022-11-23 14:05:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:56,604 INFO L225 Difference]: With dead ends: 414 [2022-11-23 14:05:56,604 INFO L226 Difference]: Without dead ends: 289 [2022-11-23 14:05:56,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=267, Invalid=993, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 14:05:56,608 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 357 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:56,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 329 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:05:56,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-23 14:05:56,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 220. [2022-11-23 14:05:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 140 states have (on average 1.1642857142857144) internal successors, (163), 152 states have internal predecessors, (163), 39 states have call successors, (39), 33 states have call predecessors, (39), 40 states have return successors, (50), 41 states have call predecessors, (50), 39 states have call successors, (50) [2022-11-23 14:05:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 252 transitions. [2022-11-23 14:05:56,682 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 252 transitions. Word has length 43 [2022-11-23 14:05:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:56,682 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 252 transitions. [2022-11-23 14:05:56,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 14:05:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 252 transitions. [2022-11-23 14:05:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-23 14:05:56,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:56,688 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:56,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:05:56,689 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1568526097, now seen corresponding path program 1 times [2022-11-23 14:05:56,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:56,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092112859] [2022-11-23 14:05:56,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:56,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 14:05:56,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:56,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092112859] [2022-11-23 14:05:56,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092112859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:56,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:56,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:05:56,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191965393] [2022-11-23 14:05:56,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:56,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:05:56,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:56,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:05:56,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:05:56,954 INFO L87 Difference]: Start difference. First operand 220 states and 252 transitions. Second operand has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:05:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:57,392 INFO L93 Difference]: Finished difference Result 593 states and 696 transitions. [2022-11-23 14:05:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:05:57,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2022-11-23 14:05:57,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:57,394 INFO L225 Difference]: With dead ends: 593 [2022-11-23 14:05:57,394 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:05:57,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-23 14:05:57,396 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 73 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:57,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 426 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:05:57,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:05:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:05:57,397 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) [2022-11-23 14:05:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:05:57,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2022-11-23 14:05:57,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:57,398 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:05:57,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:05:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:05:57,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:05:57,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:05:57,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:05:57,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:06:00,701 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 199 206) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~pumpRunning~0)| 0) (= 0 ~systemActive~0)) [2022-11-23 14:06:00,701 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 199 206) no Hoare annotation was computed. [2022-11-23 14:06:00,701 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2022-11-23 14:06:00,702 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2022-11-23 14:06:00,702 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-23 14:06:00,702 INFO L895 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-23 14:06:00,702 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2022-11-23 14:06:00,702 INFO L895 garLoopResultBuilder]: At program point L127(lines 127 144) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-23 14:06:00,702 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-23 14:06:00,702 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (= ~pumpRunning~0 0) .cse1))) [2022-11-23 14:06:00,702 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2022-11-23 14:06:00,703 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 123 147) no Hoare annotation was computed. [2022-11-23 14:06:00,703 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 907 918) the Hoare annotation is: (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) (= 0 ~systemActive~0)) [2022-11-23 14:06:00,703 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 907 918) no Hoare annotation was computed. [2022-11-23 14:06:00,703 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 785 814) no Hoare annotation was computed. [2022-11-23 14:06:00,703 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 803) no Hoare annotation was computed. [2022-11-23 14:06:00,703 INFO L902 garLoopResultBuilder]: At program point L799-1(lines 799 803) the Hoare annotation is: true [2022-11-23 14:06:00,703 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 785 814) the Hoare annotation is: true [2022-11-23 14:06:00,703 INFO L902 garLoopResultBuilder]: At program point L795-2(lines 795 809) the Hoare annotation is: true [2022-11-23 14:06:00,703 INFO L902 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: true [2022-11-23 14:06:00,703 INFO L899 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2022-11-23 14:06:00,703 INFO L902 garLoopResultBuilder]: At program point L810(lines 785 814) the Hoare annotation is: true [2022-11-23 14:06:00,704 INFO L899 garLoopResultBuilder]: For program point L806(line 806) no Hoare annotation was computed. [2022-11-23 14:06:00,704 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 919 927) the Hoare annotation is: true [2022-11-23 14:06:00,704 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 919 927) no Hoare annotation was computed. [2022-11-23 14:06:00,704 INFO L895 garLoopResultBuilder]: At program point L993(lines 993 1006) the Hoare annotation is: (let ((.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~systemActive~0))) (and (let ((.cse2 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse2 (<= 2 ~waterLevel~0)) (not .cse3) .cse4 (and .cse0 .cse5 .cse2) (and .cse5 .cse1 .cse2))) (or (and .cse5 .cse1) .cse3 (and .cse0 .cse5) .cse4) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse4))) [2022-11-23 14:06:00,704 INFO L895 garLoopResultBuilder]: At program point L993-1(lines 985 1009) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse4 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0))) (or (and .cse0 .cse1) (and .cse2 (<= 2 ~waterLevel~0)) (and .cse3 .cse0) .cse4 (and .cse3 .cse1 .cse2))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse4) (or (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0) (not .cse2) .cse4))) [2022-11-23 14:06:00,704 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (and (not (= |old(~pumpRunning~0)| 0)) (not (= ~methaneLevelCritical~0 0))) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) .cse0))) [2022-11-23 14:06:00,708 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0))) (= 0 ~systemActive~0)) [2022-11-23 14:06:00,708 INFO L899 garLoopResultBuilder]: For program point L155-1(line 155) no Hoare annotation was computed. [2022-11-23 14:06:00,708 INFO L895 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (<= |old(~waterLevel~0)| 1)) (<= ~waterLevel~0 1) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) .cse0))) [2022-11-23 14:06:00,709 INFO L895 garLoopResultBuilder]: At program point L168-1(lines 149 173) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 (<= 2 ~waterLevel~0)) (and .cse3 .cse0) .cse4 (and .cse3 .cse1 .cse2))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse4))) [2022-11-23 14:06:00,709 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2022-11-23 14:06:00,709 INFO L895 garLoopResultBuilder]: At program point L1015(line 1015) the Hoare annotation is: (= 0 ~systemActive~0) [2022-11-23 14:06:00,709 INFO L895 garLoopResultBuilder]: At program point L991(line 991) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 (<= 2 ~waterLevel~0)) (and .cse3 .cse0) .cse4 (and .cse3 .cse1 .cse2))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse4))) [2022-11-23 14:06:00,709 INFO L899 garLoopResultBuilder]: For program point L991-1(line 991) no Hoare annotation was computed. [2022-11-23 14:06:00,710 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 165) no Hoare annotation was computed. [2022-11-23 14:06:00,710 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 170) no Hoare annotation was computed. [2022-11-23 14:06:00,710 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) (<= ~waterLevel~0 1) .cse0))) [2022-11-23 14:06:00,710 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2022-11-23 14:06:00,710 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2022-11-23 14:06:00,710 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1015) no Hoare annotation was computed. [2022-11-23 14:06:00,711 INFO L899 garLoopResultBuilder]: For program point L997(lines 997 1003) no Hoare annotation was computed. [2022-11-23 14:06:00,711 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0) (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:06:00,711 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2022-11-23 14:06:00,711 INFO L902 garLoopResultBuilder]: At program point L374(lines 313 378) the Hoare annotation is: true [2022-11-23 14:06:00,711 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 339) no Hoare annotation was computed. [2022-11-23 14:06:00,711 INFO L899 garLoopResultBuilder]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2022-11-23 14:06:00,712 INFO L895 garLoopResultBuilder]: At program point L866(lines 866 873) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2022-11-23 14:06:00,712 INFO L902 garLoopResultBuilder]: At program point L866-2(lines 866 873) the Hoare annotation is: true [2022-11-23 14:06:00,712 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 14:06:00,712 INFO L895 garLoopResultBuilder]: At program point L371(lines 322 372) the Hoare annotation is: false [2022-11-23 14:06:00,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:06:00,713 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 349) no Hoare annotation was computed. [2022-11-23 14:06:00,713 INFO L895 garLoopResultBuilder]: At program point L343-1(lines 343 349) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2022-11-23 14:06:00,713 INFO L895 garLoopResultBuilder]: At program point L368(lines 323 370) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) [2022-11-23 14:06:00,713 INFO L895 garLoopResultBuilder]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) [2022-11-23 14:06:00,714 INFO L895 garLoopResultBuilder]: At program point L361-2(lines 353 366) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2022-11-23 14:06:00,715 INFO L899 garLoopResultBuilder]: For program point L324(lines 323 370) no Hoare annotation was computed. [2022-11-23 14:06:00,715 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 97 121) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-23 14:06:00,715 INFO L895 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-23 14:06:00,715 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2022-11-23 14:06:00,717 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2022-11-23 14:06:00,717 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (not .cse0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse2 (not (<= ~waterLevel~0 1)) .cse1) (or .cse2 (= ~pumpRunning~0 0) .cse1)))) [2022-11-23 14:06:00,717 INFO L895 garLoopResultBuilder]: At program point L187-1(line 187) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (not .cse0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse2 (not (<= ~waterLevel~0 1)) .cse1) (or .cse2 .cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret7#1| ~methaneLevelCritical~0)))))) [2022-11-23 14:06:00,718 INFO L895 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not .cse0) .cse1 (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-23 14:06:00,718 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2022-11-23 14:06:00,718 INFO L895 garLoopResultBuilder]: At program point L101(lines 101 118) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-23 14:06:00,718 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 895 906) no Hoare annotation was computed. [2022-11-23 14:06:00,718 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 895 906) the Hoare annotation is: true [2022-11-23 14:06:00,718 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 207 217) the Hoare annotation is: true [2022-11-23 14:06:00,718 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 207 217) no Hoare annotation was computed. [2022-11-23 14:06:00,719 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2022-11-23 14:06:00,719 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2022-11-23 14:06:00,723 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:06:00,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:06:00,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:06:00 BoogieIcfgContainer [2022-11-23 14:06:00,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:06:00,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:06:00,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:06:00,745 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:06:00,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:51" (3/4) ... [2022-11-23 14:06:00,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:06:00,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 14:06:00,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 14:06:00,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 14:06:00,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 14:06:00,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 14:06:00,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 14:06:00,756 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:06:00,756 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 14:06:00,756 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:06:00,756 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-23 14:06:00,767 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2022-11-23 14:06:00,768 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 14:06:00,768 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 14:06:00,769 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:06:00,769 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:06:00,810 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (pumpRunning == \old(pumpRunning) || 0 == systemActive) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) [2022-11-23 14:06:00,811 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) [2022-11-23 14:06:00,811 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-11-23 14:06:00,812 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == 0)) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || methaneLevelCritical == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) [2022-11-23 14:06:00,812 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-11-23 14:06:00,812 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive)) && ((tmp == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-11-23 14:06:00,813 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(waterLevel <= 1)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == 0 && aux-isMethaneAlarm()-aux == methaneLevelCritical)) [2022-11-23 14:06:00,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:06:00,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:06:00,863 INFO L158 Benchmark]: Toolchain (without parser) took 10239.19ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 126.8MB in the beginning and 157.4MB in the end (delta: -30.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-23 14:06:00,863 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:06:00,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.67ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 107.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:06:00,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.86ms. Allocated memory is still 169.9MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:06:00,864 INFO L158 Benchmark]: Boogie Preprocessor took 30.46ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:06:00,865 INFO L158 Benchmark]: RCFGBuilder took 773.70ms. Allocated memory is still 169.9MB. Free memory was 103.3MB in the beginning and 134.7MB in the end (delta: -31.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2022-11-23 14:06:00,865 INFO L158 Benchmark]: TraceAbstraction took 8787.00ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 134.1MB in the beginning and 163.7MB in the end (delta: -29.6MB). Peak memory consumption was 115.1MB. Max. memory is 16.1GB. [2022-11-23 14:06:00,865 INFO L158 Benchmark]: Witness Printer took 117.43ms. Allocated memory is still 205.5MB. Free memory was 163.7MB in the beginning and 157.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 14:06:00,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.67ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 107.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.86ms. Allocated memory is still 169.9MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.46ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 773.70ms. Allocated memory is still 169.9MB. Free memory was 103.3MB in the beginning and 134.7MB in the end (delta: -31.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8787.00ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 134.1MB in the beginning and 163.7MB in the end (delta: -29.6MB). Peak memory consumption was 115.1MB. Max. memory is 16.1GB. * Witness Printer took 117.43ms. Allocated memory is still 205.5MB. Free memory was 163.7MB in the beginning and 157.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1015]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 816 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 787 mSDsluCounter, 1675 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1139 mSDsCounter, 390 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1682 IncrementalHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 390 mSolverCounterUnsat, 536 mSDtfsCounter, 1682 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 103 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 655 PreInvPairs, 794 NumberOfFragments, 770 HoareAnnotationTreeSize, 655 FomulaSimplifications, 707 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 43 FomulaSimplificationsInter, 10675 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 639 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 43/43 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: 149]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (pumpRunning == \old(pumpRunning) || 0 == systemActive) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == systemActive) && splverifierCounter == 0) && tmp == 1) || (((methaneLevelCritical == 0 && tmp == systemActive) && splverifierCounter == 0) && tmp == 1) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 795]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 985]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && tmp == methaneLevelCritical) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive)) && ((tmp == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 1015]: Loop Invariant Derived loop invariant: 0 == systemActive - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && tmp == systemActive) && tmp == 1 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: (((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(waterLevel <= 1)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == 0 && aux-isMethaneAlarm()-aux == methaneLevelCritical)) - InvariantResult [Line: 993]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == 0)) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || methaneLevelCritical == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) || 0 == systemActive) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: (tmp == systemActive && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 322]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:06:00,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1289cc18-ffc0-4197-8d59-e7f5ae318062/bin/utaipan-Q6hlc19bkW/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