./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh --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 b6ed1bc0f587e235387623d030d0c0bc898e2b8960003dc87fc2eaa6eba20f64 --- 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-2329fc7 [2022-12-14 12:28:58,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:28:58,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:28:58,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:28:58,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:28:58,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:28:58,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:28:58,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:28:58,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:28:58,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:28:58,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:28:58,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:28:58,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:28:58,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:28:58,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:28:58,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:28:58,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:28:58,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:28:58,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:28:58,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:28:58,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:28:58,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:28:58,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:28:58,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:28:58,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:28:58,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:28:58,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:28:58,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:28:58,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:28:58,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:28:58,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:28:58,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:28:58,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:28:58,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:28:58,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:28:58,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:28:58,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:28:58,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:28:58,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:28:58,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:28:58,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:28:58,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:28:58,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:28:58,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:28:58,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:28:58,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:28:58,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:28:58,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:28:58,432 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:28:58,432 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:28:58,432 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:28:58,432 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:28:58,432 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:28:58,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:28:58,433 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:28:58,433 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:28:58,433 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:28:58,433 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:28:58,433 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:28:58,433 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:28:58,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:28:58,434 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:28:58,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:28:58,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:28:58,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:28:58,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:28:58,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:28:58,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:28:58,435 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:28:58,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:28:58,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:28:58,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:28:58,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:28:58,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:28:58,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:28:58,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:28:58,437 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:28:58,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:28:58,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:28:58,437 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:28:58,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:28:58,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:28:58,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:28:58,438 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_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6ed1bc0f587e235387623d030d0c0bc898e2b8960003dc87fc2eaa6eba20f64 [2022-12-14 12:28:58,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:28:58,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:28:58,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:28:58,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:28:58,618 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:28:58,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c [2022-12-14 12:29:01,213 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:29:01,399 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:29:01,400 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c [2022-12-14 12:29:01,408 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/data/41014a1dc/8ba391aaaea7417c976cafd875d09c21/FLAG4cbe0ca58 [2022-12-14 12:29:01,418 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/data/41014a1dc/8ba391aaaea7417c976cafd875d09c21 [2022-12-14 12:29:01,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:29:01,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:29:01,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:29:01,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:29:01,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:29:01,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163ee9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01, skipping insertion in model container [2022-12-14 12:29:01,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:29:01,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:29:01,601 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_0e1421ca-456a-4493-8f35-43e5bbd8f399/sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c[7805,7818] [2022-12-14 12:29:01,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:29:01,664 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:29:01,691 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_0e1421ca-456a-4493-8f35-43e5bbd8f399/sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c[7805,7818] [2022-12-14 12:29:01,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:29:01,737 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:29:01,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01 WrapperNode [2022-12-14 12:29:01,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:29:01,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:29:01,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:29:01,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:29:01,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,777 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 165 [2022-12-14 12:29:01,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:29:01,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:29:01,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:29:01,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:29:01,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:29:01,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:29:01,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:29:01,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:29:01,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (1/1) ... [2022-12-14 12:29:01,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:29:01,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:29:01,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:29:01,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:29:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:29:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 12:29:01,861 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 12:29:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 12:29:01,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 12:29:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 12:29:01,862 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 12:29:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 12:29:01,862 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 12:29:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 12:29:01,862 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 12:29:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:29:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 12:29:01,862 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 12:29:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:29:01,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:29:01,924 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:29:01,926 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:29:02,129 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:29:02,219 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:29:02,220 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 12:29:02,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:02 BoogieIcfgContainer [2022-12-14 12:29:02,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:29:02,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:29:02,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:29:02,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:29:02,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:29:01" (1/3) ... [2022-12-14 12:29:02,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6a923b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:29:02, skipping insertion in model container [2022-12-14 12:29:02,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:01" (2/3) ... [2022-12-14 12:29:02,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6a923b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:29:02, skipping insertion in model container [2022-12-14 12:29:02,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:02" (3/3) ... [2022-12-14 12:29:02,232 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product25.cil.c [2022-12-14 12:29:02,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:29:02,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:29:02,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:29:02,307 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;@3b12871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:29:02,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:29:02,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.4375) internal successors, (46), 38 states have internal predecessors, (46), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 12:29:02,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 12:29:02,321 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:02,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:02,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:02,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2035926696, now seen corresponding path program 1 times [2022-12-14 12:29:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:02,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771699628] [2022-12-14 12:29:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:02,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:02,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:02,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771699628] [2022-12-14 12:29:02,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771699628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:02,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:02,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:29:02,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567729344] [2022-12-14 12:29:02,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:02,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:29:02,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:02,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:29:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:29:02,521 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.4375) internal successors, (46), 38 states have internal predecessors, (46), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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) [2022-12-14 12:29:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:02,576 INFO L93 Difference]: Finished difference Result 96 states and 129 transitions. [2022-12-14 12:29:02,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:29:02,578 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 [2022-12-14 12:29:02,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:02,586 INFO L225 Difference]: With dead ends: 96 [2022-12-14 12:29:02,586 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 12:29:02,589 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 [2022-12-14 12:29:02,592 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:02,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:29:02,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 12:29:02,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 12:29:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 12:29:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2022-12-14 12:29:02,630 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 17 [2022-12-14 12:29:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:02,630 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2022-12-14 12:29:02,630 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) [2022-12-14 12:29:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2022-12-14 12:29:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 12:29:02,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:02,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:02,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:29:02,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:02,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1981729385, now seen corresponding path program 1 times [2022-12-14 12:29:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:02,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245951898] [2022-12-14 12:29:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:02,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:02,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245951898] [2022-12-14 12:29:02,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245951898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:02,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:02,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:29:02,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296370969] [2022-12-14 12:29:02,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:02,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:29:02,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:02,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:29:02,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:29:02,722 INFO L87 Difference]: Start difference. First operand 44 states and 55 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) [2022-12-14 12:29:02,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:02,753 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2022-12-14 12:29:02,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:29:02,754 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 [2022-12-14 12:29:02,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:02,754 INFO L225 Difference]: With dead ends: 65 [2022-12-14 12:29:02,755 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 12:29:02,755 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 [2022-12-14 12:29:02,757 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:02,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 55 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:29:02,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 12:29:02,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 12:29:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 29 states have internal predecessors, (32), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 12:29:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2022-12-14 12:29:02,764 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 18 [2022-12-14 12:29:02,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:02,764 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2022-12-14 12:29:02,764 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) [2022-12-14 12:29:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-12-14 12:29:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 12:29:02,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:02,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:02,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:29:02,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:02,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:02,767 INFO L85 PathProgramCache]: Analyzing trace with hash -353411251, now seen corresponding path program 1 times [2022-12-14 12:29:02,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:02,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266374801] [2022-12-14 12:29:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:02,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:02,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:02,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266374801] [2022-12-14 12:29:02,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266374801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:02,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:02,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:29:02,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749630655] [2022-12-14 12:29:02,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:02,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:29:02,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:29:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:29:02,874 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:29:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:02,929 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2022-12-14 12:29:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:29:02,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-12-14 12:29:02,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:02,930 INFO L225 Difference]: With dead ends: 70 [2022-12-14 12:29:02,930 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 12:29:02,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:29:02,931 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:02,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 39 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:29:02,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 12:29:02,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 12:29:02,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 29 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 12:29:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2022-12-14 12:29:02,936 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 20 [2022-12-14 12:29:02,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:02,936 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2022-12-14 12:29:02,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:29:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2022-12-14 12:29:02,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 12:29:02,937 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:02,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:02,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:29:02,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:02,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash 137015407, now seen corresponding path program 1 times [2022-12-14 12:29:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:02,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601483100] [2022-12-14 12:29:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:02,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:02,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:02,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601483100] [2022-12-14 12:29:02,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601483100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:02,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:02,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:29:02,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325665906] [2022-12-14 12:29:02,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:02,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:29:02,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:29:02,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:29:02,986 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:29:03,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:03,006 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2022-12-14 12:29:03,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:29:03,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-12-14 12:29:03,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:03,007 INFO L225 Difference]: With dead ends: 68 [2022-12-14 12:29:03,007 INFO L226 Difference]: Without dead ends: 34 [2022-12-14 12:29:03,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:29:03,009 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:03,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 27 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:29:03,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-14 12:29:03,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-12-14 12:29:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 26 states have internal predecessors, (28), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:29:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-12-14 12:29:03,015 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2022-12-14 12:29:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:03,015 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-12-14 12:29:03,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:29:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-12-14 12:29:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 12:29:03,016 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:03,016 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] [2022-12-14 12:29:03,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:29:03,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:03,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:03,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1090186653, now seen corresponding path program 1 times [2022-12-14 12:29:03,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:03,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894024924] [2022-12-14 12:29:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:03,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:03,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:03,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894024924] [2022-12-14 12:29:03,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894024924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:03,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:03,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 12:29:03,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402512236] [2022-12-14 12:29:03,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:03,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:29:03,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:03,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:29:03,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:29:03,077 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 12:29:03,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:03,155 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2022-12-14 12:29:03,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 12:29:03,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-12-14 12:29:03,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:03,156 INFO L225 Difference]: With dead ends: 95 [2022-12-14 12:29:03,156 INFO L226 Difference]: Without dead ends: 63 [2022-12-14 12:29:03,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:29:03,157 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:03,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 138 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:29:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-12-14 12:29:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2022-12-14 12:29:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 40 states have (on average 1.175) internal successors, (47), 44 states have internal predecessors, (47), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 12:29:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-12-14 12:29:03,166 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 25 [2022-12-14 12:29:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:03,166 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-12-14 12:29:03,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 12:29:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-12-14 12:29:03,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 12:29:03,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:03,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:03,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:29:03,167 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:03,167 INFO L85 PathProgramCache]: Analyzing trace with hash -334406252, now seen corresponding path program 1 times [2022-12-14 12:29:03,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:03,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721752181] [2022-12-14 12:29:03,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:03,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:03,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:03,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721752181] [2022-12-14 12:29:03,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721752181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:03,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:03,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:29:03,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261932633] [2022-12-14 12:29:03,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:03,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:29:03,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:03,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:29:03,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:29:03,204 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 12:29:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:03,237 INFO L93 Difference]: Finished difference Result 91 states and 103 transitions. [2022-12-14 12:29:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:29:03,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-12-14 12:29:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:03,239 INFO L225 Difference]: With dead ends: 91 [2022-12-14 12:29:03,239 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 12:29:03,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:29:03,240 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:03,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 57 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:29:03,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 12:29:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-12-14 12:29:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 66 states have internal predecessors, (71), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 12:29:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2022-12-14 12:29:03,251 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 28 [2022-12-14 12:29:03,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:03,251 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2022-12-14 12:29:03,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 12:29:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2022-12-14 12:29:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 12:29:03,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:03,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:03,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:29:03,252 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1422028506, now seen corresponding path program 1 times [2022-12-14 12:29:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:03,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387352787] [2022-12-14 12:29:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:03,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 12:29:03,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:03,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387352787] [2022-12-14 12:29:03,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387352787] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:03,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:03,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 12:29:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873984069] [2022-12-14 12:29:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:03,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:29:03,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:03,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:29:03,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:29:03,368 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 12:29:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:03,443 INFO L93 Difference]: Finished difference Result 120 states and 137 transitions. [2022-12-14 12:29:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:29:03,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2022-12-14 12:29:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:03,444 INFO L225 Difference]: With dead ends: 120 [2022-12-14 12:29:03,444 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 12:29:03,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:29:03,446 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:03,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 43 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:29:03,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 12:29:03,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 12:29:03,447 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) [2022-12-14 12:29:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 12:29:03,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2022-12-14 12:29:03,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:03,447 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 12:29:03,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 12:29:03,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 12:29:03,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 12:29:03,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 12:29:03,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:29:03,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 12:29:03,790 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 291 297) no Hoare annotation was computed. [2022-12-14 12:29:03,791 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 291 297) the Hoare annotation is: true [2022-12-14 12:29:03,791 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 461 472) the Hoare annotation is: true [2022-12-14 12:29:03,791 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 461 472) no Hoare annotation was computed. [2022-12-14 12:29:03,791 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 473 481) the Hoare annotation is: true [2022-12-14 12:29:03,791 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 473 481) no Hoare annotation was computed. [2022-12-14 12:29:03,791 INFO L899 garLoopResultBuilder]: For program point L271-1(lines 270 289) no Hoare annotation was computed. [2022-12-14 12:29:03,792 INFO L895 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 12:29:03,792 INFO L899 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2022-12-14 12:29:03,792 INFO L895 garLoopResultBuilder]: At program point L313(line 313) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 12:29:03,792 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 12:29:03,792 INFO L895 garLoopResultBuilder]: At program point L318(line 318) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 12:29:03,792 INFO L895 garLoopResultBuilder]: At program point L318-1(lines 299 323) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 12:29:03,793 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 564) no Hoare annotation was computed. [2022-12-14 12:29:03,793 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 267 290) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 12:29:03,793 INFO L895 garLoopResultBuilder]: At program point L550(lines 550 567) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0) .cse2))) [2022-12-14 12:29:03,793 INFO L895 garLoopResultBuilder]: At program point L550-1(lines 542 570) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0) .cse2))) [2022-12-14 12:29:03,794 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 278 284) no Hoare annotation was computed. [2022-12-14 12:29:03,794 INFO L895 garLoopResultBuilder]: At program point L307(lines 307 315) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 12:29:03,794 INFO L895 garLoopResultBuilder]: At program point L303(lines 303 320) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 12:29:03,794 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 561) no Hoare annotation was computed. [2022-12-14 12:29:03,794 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 267 290) no Hoare annotation was computed. [2022-12-14 12:29:03,794 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 528) no Hoare annotation was computed. [2022-12-14 12:29:03,794 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-12-14 12:29:03,795 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-12-14 12:29:03,795 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-12-14 12:29:03,795 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-12-14 12:29:03,795 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-12-14 12:29:03,795 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-12-14 12:29:03,795 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2022-12-14 12:29:03,795 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-12-14 12:29:03,795 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-12-14 12:29:03,795 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 227) no Hoare annotation was computed. [2022-12-14 12:29:03,796 INFO L899 garLoopResultBuilder]: For program point L221-1(lines 221 227) no Hoare annotation was computed. [2022-12-14 12:29:03,796 INFO L902 garLoopResultBuilder]: At program point L250(lines 191 254) the Hoare annotation is: true [2022-12-14 12:29:03,796 INFO L895 garLoopResultBuilder]: At program point L213(line 213) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-12-14 12:29:03,796 INFO L895 garLoopResultBuilder]: At program point L247(lines 200 248) the Hoare annotation is: false [2022-12-14 12:29:03,796 INFO L899 garLoopResultBuilder]: For program point L202(lines 201 246) no Hoare annotation was computed. [2022-12-14 12:29:03,796 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 12:29:03,796 INFO L895 garLoopResultBuilder]: At program point L223(line 223) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-12-14 12:29:03,797 INFO L895 garLoopResultBuilder]: At program point L244(lines 201 246) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-12-14 12:29:03,797 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 217) no Hoare annotation was computed. [2022-12-14 12:29:03,797 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 211 217) no Hoare annotation was computed. [2022-12-14 12:29:03,797 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 12:29:03,797 INFO L895 garLoopResultBuilder]: At program point L142(lines 142 149) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0))) [2022-12-14 12:29:03,797 INFO L902 garLoopResultBuilder]: At program point L142-2(lines 142 149) the Hoare annotation is: true [2022-12-14 12:29:03,797 INFO L895 garLoopResultBuilder]: At program point L237-2(lines 231 242) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-12-14 12:29:03,797 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 449 460) no Hoare annotation was computed. [2022-12-14 12:29:03,798 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 449 460) the Hoare annotation is: true [2022-12-14 12:29:03,801 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:03,803 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:29:03,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:29:03 BoogieIcfgContainer [2022-12-14 12:29:03,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:29:03,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:29:03,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:29:03,819 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:29:03,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:02" (3/4) ... [2022-12-14 12:29:03,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 12:29:03,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 12:29:03,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 12:29:03,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 12:29:03,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 12:29:03,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 12:29:03,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 12:29:03,831 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2022-12-14 12:29:03,831 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 12:29:03,831 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 12:29:03,831 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 12:29:03,832 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 12:29:03,849 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-12-14 12:29:03,850 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-12-14 12:29:03,850 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-12-14 12:29:03,850 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) [2022-12-14 12:29:03,850 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) [2022-12-14 12:29:03,851 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive [2022-12-14 12:29:03,851 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive [2022-12-14 12:29:03,864 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:29:03,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:29:03,864 INFO L158 Benchmark]: Toolchain (without parser) took 2443.45ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 86.5MB in the beginning and 50.4MB in the end (delta: 36.1MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2022-12-14 12:29:03,865 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:29:03,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.56ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 68.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 12:29:03,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.94ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:29:03,865 INFO L158 Benchmark]: Boogie Preprocessor took 22.74ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 64.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:29:03,865 INFO L158 Benchmark]: RCFGBuilder took 420.78ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 64.3MB in the beginning and 108.4MB in the end (delta: -44.1MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-12-14 12:29:03,865 INFO L158 Benchmark]: TraceAbstraction took 1592.30ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 55.6MB in the end (delta: 52.0MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2022-12-14 12:29:03,866 INFO L158 Benchmark]: Witness Printer took 45.71ms. Allocated memory is still 142.6MB. Free memory was 55.6MB in the beginning and 50.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:29:03,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.56ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 68.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.94ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.74ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 64.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 420.78ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 64.3MB in the beginning and 108.4MB in the end (delta: -44.1MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1592.30ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 55.6MB in the end (delta: 52.0MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * Witness Printer took 45.71ms. Allocated memory is still 142.6MB. Free memory was 55.6MB in the beginning and 50.4MB in the end (delta: 5.2MB). 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 - PositiveResult [Line: 528]: 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 7 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 405 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 211 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=6, InterpolantAutomatonStates: 28, 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, 7 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 176 PreInvPairs, 195 NumberOfFragments, 307 HoareAnnotationTreeSize, 176 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 658 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 22/22 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: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive - InvariantResult [Line: 299]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && splverifierCounter == 0) && !(0 == systemActive) - InvariantResult [Line: 303]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive) - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) RESULT: Ultimate proved your program to be correct! [2022-12-14 12:29:03,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e1421ca-456a-4493-8f35-43e5bbd8f399/bin/utaipan-gh47qXpMRh/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