./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:00:18,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:00:18,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:00:18,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:00:18,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:00:18,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:00:18,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:00:18,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:00:18,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:00:18,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:00:18,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:00:18,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:00:18,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:00:18,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:00:18,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:00:18,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:00:18,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:00:18,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:00:18,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:00:18,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:00:18,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:00:18,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:00:18,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:00:18,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:00:18,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:00:18,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:00:18,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:00:18,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:00:18,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:00:18,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:00:18,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:00:18,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:00:18,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:00:18,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:00:18,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:00:18,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:00:18,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:00:18,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:00:18,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:00:18,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:00:18,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:00:18,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:00:18,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:00:18,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:00:18,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:00:18,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:00:18,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:00:18,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:00:18,953 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:00:18,953 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:00:18,954 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:00:18,954 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:00:18,955 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:00:18,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:00:18,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:00:18,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:00:18,957 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:00:18,957 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:00:18,958 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:00:18,958 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:00:18,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:00:18,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:00:18,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:00:18,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:00:18,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:00:18,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:00:18,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:00:18,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:00:18,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:00:18,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:00:18,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:00:18,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:00:18,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:00:18,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:00:18,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:00:18,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:00:18,966 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:00:18,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:00:18,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:00:18,967 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:00:18,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:00:18,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:00:18,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:00:18,968 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_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2022-11-03 04:00:19,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:00:19,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:00:19,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:00:19,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:00:19,390 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:00:19,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2022-11-03 04:00:19,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/data/93b51fd8f/d4af85d4e0094e50b4ebf37db8589fb6/FLAGcea67d22c [2022-11-03 04:00:20,201 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:00:20,202 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2022-11-03 04:00:20,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/data/93b51fd8f/d4af85d4e0094e50b4ebf37db8589fb6/FLAGcea67d22c [2022-11-03 04:00:20,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/data/93b51fd8f/d4af85d4e0094e50b4ebf37db8589fb6 [2022-11-03 04:00:20,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:00:20,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:00:20,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:20,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:00:20,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:00:20,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:20" (1/1) ... [2022-11-03 04:00:20,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481d37a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:20, skipping insertion in model container [2022-11-03 04:00:20,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:20" (1/1) ... [2022-11-03 04:00:20,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:00:20,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:00:20,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618] [2022-11-03 04:00:21,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:21,077 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:00:21,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618] [2022-11-03 04:00:21,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:21,202 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:00:21,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21 WrapperNode [2022-11-03 04:00:21,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:21,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:21,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:00:21,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:00:21,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,262 INFO L138 Inliner]: procedures = 56, calls = 159, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 256 [2022-11-03 04:00:21,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:21,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:00:21,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:00:21,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:00:21,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:00:21,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:00:21,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:00:21,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:00:21,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (1/1) ... [2022-11-03 04:00:21,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:00:21,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:21,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:00:21,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:00:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:00:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 04:00:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 04:00:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 04:00:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 04:00:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 04:00:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 04:00:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 04:00:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 04:00:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 04:00:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 04:00:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 04:00:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 04:00:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 04:00:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 04:00:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 04:00:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 04:00:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:00:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 04:00:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 04:00:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:00:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:00:21,542 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:00:21,545 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:00:22,068 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:00:22,224 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:00:22,225 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 04:00:22,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:22 BoogieIcfgContainer [2022-11-03 04:00:22,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:00:22,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:00:22,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:00:22,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:00:22,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:00:20" (1/3) ... [2022-11-03 04:00:22,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f00ca43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:22, skipping insertion in model container [2022-11-03 04:00:22,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:21" (2/3) ... [2022-11-03 04:00:22,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f00ca43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:22, skipping insertion in model container [2022-11-03 04:00:22,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:22" (3/3) ... [2022-11-03 04:00:22,246 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2022-11-03 04:00:22,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:00:22,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:00:22,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:00:22,368 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;@68e1412f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:00:22,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:00:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 04:00:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 04:00:22,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:22,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:22,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1624138645, now seen corresponding path program 1 times [2022-11-03 04:00:22,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:22,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148320745] [2022-11-03 04:00:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:00:22,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:22,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148320745] [2022-11-03 04:00:22,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148320745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:22,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:22,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:00:22,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883827223] [2022-11-03 04:00:22,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:22,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:00:22,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:22,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:00:22,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:00:22,855 INFO L87 Difference]: Start difference. First operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:23,031 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-11-03 04:00:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:00:23,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 04:00:23,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:23,048 INFO L225 Difference]: With dead ends: 142 [2022-11-03 04:00:23,048 INFO L226 Difference]: Without dead ends: 67 [2022-11-03 04:00:23,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:00:23,062 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:23,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:00:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-03 04:00:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-03 04:00:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 50 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:00:23,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-11-03 04:00:23,115 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 17 [2022-11-03 04:00:23,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:23,116 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-11-03 04:00:23,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-03 04:00:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 04:00:23,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:23,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:23,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:00:23,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:23,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:23,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1533789110, now seen corresponding path program 1 times [2022-11-03 04:00:23,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:23,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828526056] [2022-11-03 04:00:23,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:23,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:00:23,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:23,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828526056] [2022-11-03 04:00:23,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828526056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:23,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:23,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:23,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155974804] [2022-11-03 04:00:23,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:23,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:23,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:23,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:23,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:23,232 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:23,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:23,292 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2022-11-03 04:00:23,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:23,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 04:00:23,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:23,295 INFO L225 Difference]: With dead ends: 106 [2022-11-03 04:00:23,295 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 04:00:23,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:23,298 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:23,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 104 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:00:23,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 04:00:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-03 04:00:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 04:00:23,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2022-11-03 04:00:23,311 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 18 [2022-11-03 04:00:23,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:23,311 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2022-11-03 04:00:23,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2022-11-03 04:00:23,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 04:00:23,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:23,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:23,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:00:23,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:23,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:23,315 INFO L85 PathProgramCache]: Analyzing trace with hash -514202793, now seen corresponding path program 1 times [2022-11-03 04:00:23,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:23,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540536862] [2022-11-03 04:00:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:23,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:00:23,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:23,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540536862] [2022-11-03 04:00:23,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540536862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:23,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:23,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:23,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249173819] [2022-11-03 04:00:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:23,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:23,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:23,430 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:23,546 INFO L93 Difference]: Finished difference Result 173 states and 225 transitions. [2022-11-03 04:00:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:23,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-03 04:00:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:23,552 INFO L225 Difference]: With dead ends: 173 [2022-11-03 04:00:23,553 INFO L226 Difference]: Without dead ends: 116 [2022-11-03 04:00:23,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:23,558 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 70 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:23,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 138 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:00:23,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-03 04:00:23,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-11-03 04:00:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 85 states have internal predecessors, (95), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-03 04:00:23,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2022-11-03 04:00:23,599 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 21 [2022-11-03 04:00:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:23,599 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2022-11-03 04:00:23,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2022-11-03 04:00:23,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 04:00:23,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:23,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:23,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:00:23,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:23,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:23,603 INFO L85 PathProgramCache]: Analyzing trace with hash -658210149, now seen corresponding path program 1 times [2022-11-03 04:00:23,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:23,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697271286] [2022-11-03 04:00:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:23,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:00:24,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:24,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697271286] [2022-11-03 04:00:24,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697271286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:24,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:24,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:00:24,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292320765] [2022-11-03 04:00:24,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:24,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:00:24,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:24,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:00:24,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:00:24,022 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:24,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:24,302 INFO L93 Difference]: Finished difference Result 417 states and 555 transitions. [2022-11-03 04:00:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:00:24,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 24 [2022-11-03 04:00:24,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:24,307 INFO L225 Difference]: With dead ends: 417 [2022-11-03 04:00:24,308 INFO L226 Difference]: Without dead ends: 306 [2022-11-03 04:00:24,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:00:24,310 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 130 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:24,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 273 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:00:24,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-03 04:00:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 285. [2022-11-03 04:00:24,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 184 states have (on average 1.309782608695652) internal successors, (241), 209 states have internal predecessors, (241), 58 states have call successors, (58), 42 states have call predecessors, (58), 42 states have return successors, (66), 48 states have call predecessors, (66), 58 states have call successors, (66) [2022-11-03 04:00:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 365 transitions. [2022-11-03 04:00:24,367 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 365 transitions. Word has length 24 [2022-11-03 04:00:24,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:24,368 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 365 transitions. [2022-11-03 04:00:24,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:00:24,368 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 365 transitions. [2022-11-03 04:00:24,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 04:00:24,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:24,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:24,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:00:24,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1998037422, now seen corresponding path program 1 times [2022-11-03 04:00:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:24,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074172723] [2022-11-03 04:00:24,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:24,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:00:24,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:00:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:00:24,465 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 04:00:24,466 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:00:24,469 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:00:24,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:00:24,479 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 04:00:24,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:00:24,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:00:24 BoogieIcfgContainer [2022-11-03 04:00:24,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:00:24,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:00:24,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:00:24,568 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:00:24,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:22" (3/4) ... [2022-11-03 04:00:24,577 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 04:00:24,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:00:24,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:00:24,665 INFO L158 Benchmark]: Toolchain (without parser) took 4223.92ms. Allocated memory is still 169.9MB. Free memory was 134.8MB in the beginning and 106.4MB in the end (delta: 28.5MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-11-03 04:00:24,665 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:00:24,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.93ms. Allocated memory is still 169.9MB. Free memory was 134.8MB in the beginning and 136.5MB in the end (delta: -1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 04:00:24,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.02ms. Allocated memory is still 169.9MB. Free memory was 136.5MB in the beginning and 133.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:00:24,667 INFO L158 Benchmark]: Boogie Preprocessor took 74.08ms. Allocated memory is still 169.9MB. Free memory was 133.9MB in the beginning and 132.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:00:24,667 INFO L158 Benchmark]: RCFGBuilder took 889.86ms. Allocated memory is still 169.9MB. Free memory was 132.3MB in the beginning and 101.3MB in the end (delta: 31.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-03 04:00:24,668 INFO L158 Benchmark]: TraceAbstraction took 2335.09ms. Allocated memory is still 169.9MB. Free memory was 100.4MB in the beginning and 110.5MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:00:24,668 INFO L158 Benchmark]: Witness Printer took 97.25ms. Allocated memory is still 169.9MB. Free memory was 110.5MB in the beginning and 106.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:00:24,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.93ms. Allocated memory is still 169.9MB. Free memory was 134.8MB in the beginning and 136.5MB in the end (delta: -1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.02ms. Allocated memory is still 169.9MB. Free memory was 136.5MB in the beginning and 133.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.08ms. Allocated memory is still 169.9MB. Free memory was 133.9MB in the beginning and 132.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 889.86ms. Allocated memory is still 169.9MB. Free memory was 132.3MB in the beginning and 101.3MB in the end (delta: 31.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2335.09ms. Allocated memory is still 169.9MB. Free memory was 100.4MB in the beginning and 110.5MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 97.25ms. Allocated memory is still 169.9MB. Free memory was 110.5MB in the beginning and 106.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L531] int retValue_acc ; [L532] int tmp ; [L536] FCALL select_helpers() [L537] FCALL select_features() [L538] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L538] RET, EXPR valid_product() [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L542] FCALL setup() [L543] CALL runTest() [L525] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L564] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L576] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE waterLevel < 2 [L158] waterLevel = waterLevel + 1 [L576] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND FALSE !(\read(tmp___2)) [L600] tmp___1 = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp___1) [L604] CALL stopSystem() [L437] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L444] systemActive = 0 [L604] RET stopSystem() [L611] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L246] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L253] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L261] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); [L107] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND TRUE tmp___0 == 2 [L117] CALL, EXPR isPumpRunning() [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); [L117] RET, EXPR isPumpRunning() [L117] tmp___1 = isPumpRunning() [L119] COND FALSE !(\read(tmp___1)) [L123] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 589 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 308 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-03 04:00:24,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a731586-66b4-4699-af60-c97ae933a4b0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE