./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f --- 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-38b53e6 [2022-11-25 16:43:20,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:43:20,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:43:20,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:43:20,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:43:20,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:43:20,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:43:20,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:43:20,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:43:20,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:43:20,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:43:20,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:43:20,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:43:20,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:43:20,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:43:20,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:43:20,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:43:20,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:43:20,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:43:20,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:43:20,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:43:20,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:43:20,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:43:20,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:43:20,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:43:20,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:43:20,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:43:20,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:43:20,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:43:20,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:43:20,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:43:20,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:43:20,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:43:20,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:43:20,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:43:20,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:43:20,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:43:20,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:43:20,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:43:20,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:43:20,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:43:20,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:43:20,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:43:20,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:43:20,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:43:20,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:43:20,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:43:20,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:43:20,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:43:20,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:43:20,531 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:43:20,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:43:20,531 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:43:20,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:43:20,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:43:20,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:43:20,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:43:20,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:43:20,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:43:20,533 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:43:20,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:43:20,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:43:20,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:43:20,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:43:20,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:43:20,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:43:20,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:43:20,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:43:20,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:43:20,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:43:20,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:43:20,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:43:20,536 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:43:20,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:43:20,537 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:43:20,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:43:20,537 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2022-11-25 16:43:20,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:43:20,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:43:20,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:43:20,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:43:20,866 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:43:20,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2022-11-25 16:43:23,837 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:43:24,129 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:43:24,130 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2022-11-25 16:43:24,150 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/data/b94b74a5b/efd65d5079b94a2aa9b4aebce3506a68/FLAGc9ae29c7f [2022-11-25 16:43:24,178 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/data/b94b74a5b/efd65d5079b94a2aa9b4aebce3506a68 [2022-11-25 16:43:24,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:43:24,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:43:24,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:43:24,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:43:24,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:43:24,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398cd15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24, skipping insertion in model container [2022-11-25 16:43:24,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:43:24,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:43:24,664 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_5b6febb4-b405-427d-9679-1532ee0110b8/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2022-11-25 16:43:24,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:43:24,681 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:43:24,775 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_5b6febb4-b405-427d-9679-1532ee0110b8/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2022-11-25 16:43:24,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:43:24,793 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:43:24,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24 WrapperNode [2022-11-25 16:43:24,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:43:24,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:43:24,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:43:24,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:43:24,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,842 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 233 [2022-11-25 16:43:24,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:43:24,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:43:24,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:43:24,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:43:24,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:43:24,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:43:24,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:43:24,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:43:24,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (1/1) ... [2022-11-25 16:43:24,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:43:24,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:24,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:24,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:43:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:43:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-25 16:43:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-25 16:43:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-25 16:43:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-25 16:43:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 16:43:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 16:43:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 16:43:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 16:43:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 16:43:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 16:43:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-25 16:43:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-25 16:43:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-25 16:43:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-25 16:43:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-25 16:43:24,973 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-25 16:43:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:43:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-25 16:43:24,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-25 16:43:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:43:24,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:43:25,097 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:43:25,099 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:43:25,470 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:43:25,478 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:43:25,482 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 16:43:25,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:25 BoogieIcfgContainer [2022-11-25 16:43:25,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:43:25,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:43:25,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:43:25,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:43:25,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:43:24" (1/3) ... [2022-11-25 16:43:25,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed4bc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:43:25, skipping insertion in model container [2022-11-25 16:43:25,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:24" (2/3) ... [2022-11-25 16:43:25,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed4bc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:43:25, skipping insertion in model container [2022-11-25 16:43:25,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:25" (3/3) ... [2022-11-25 16:43:25,494 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2022-11-25 16:43:25,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:43:25,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:43:25,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:43:25,607 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=PETRI_NET, 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;@92e4358, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:43:25,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:43:25,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 79 states have (on average 1.379746835443038) internal successors, (109), 90 states have internal predecessors, (109), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-25 16:43:25,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 16:43:25,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:25,631 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] [2022-11-25 16:43:25,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:25,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1156064115, now seen corresponding path program 1 times [2022-11-25 16:43:25,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:25,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364457287] [2022-11-25 16:43:25,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:25,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 16:43:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:25,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:25,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364457287] [2022-11-25 16:43:25,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364457287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:25,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:25,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:43:25,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790117766] [2022-11-25 16:43:25,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:25,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:43:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:25,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:43:25,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:43:25,963 INFO L87 Difference]: Start difference. First operand has 107 states, 79 states have (on average 1.379746835443038) internal successors, (109), 90 states have internal predecessors, (109), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:26,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:26,016 INFO L93 Difference]: Finished difference Result 206 states and 281 transitions. [2022-11-25 16:43:26,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:43:26,018 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2022-11-25 16:43:26,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:26,026 INFO L225 Difference]: With dead ends: 206 [2022-11-25 16:43:26,027 INFO L226 Difference]: Without dead ends: 98 [2022-11-25 16:43:26,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:43:26,034 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:26,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:43:26,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-25 16:43:26,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-25 16:43:26,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 82 states have internal predecessors, (95), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 16:43:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 128 transitions. [2022-11-25 16:43:26,083 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 128 transitions. Word has length 25 [2022-11-25 16:43:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:26,084 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 128 transitions. [2022-11-25 16:43:26,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:26,084 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 128 transitions. [2022-11-25 16:43:26,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 16:43:26,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:26,087 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] [2022-11-25 16:43:26,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:43:26,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:26,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:26,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1074288904, now seen corresponding path program 1 times [2022-11-25 16:43:26,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:26,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142081254] [2022-11-25 16:43:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:26,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 16:43:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:26,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:26,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142081254] [2022-11-25 16:43:26,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142081254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:26,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:26,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:43:26,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014146282] [2022-11-25 16:43:26,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:26,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:43:26,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:26,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:43:26,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:43:26,324 INFO L87 Difference]: Start difference. First operand 98 states and 128 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:26,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:26,369 INFO L93 Difference]: Finished difference Result 157 states and 205 transitions. [2022-11-25 16:43:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:43:26,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2022-11-25 16:43:26,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:26,374 INFO L225 Difference]: With dead ends: 157 [2022-11-25 16:43:26,376 INFO L226 Difference]: Without dead ends: 89 [2022-11-25 16:43:26,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:43:26,381 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 17 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:26,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:43:26,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-25 16:43:26,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-11-25 16:43:26,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 66 states have (on average 1.3333333333333333) internal successors, (88), 76 states have internal predecessors, (88), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-25 16:43:26,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2022-11-25 16:43:26,413 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 26 [2022-11-25 16:43:26,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:26,413 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2022-11-25 16:43:26,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2022-11-25 16:43:26,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 16:43:26,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:26,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:26,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:43:26,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:26,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:26,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1681126182, now seen corresponding path program 1 times [2022-11-25 16:43:26,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:26,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275734997] [2022-11-25 16:43:26,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:26,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:43:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:26,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:26,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275734997] [2022-11-25 16:43:26,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275734997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:26,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:26,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:43:26,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390384564] [2022-11-25 16:43:26,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:26,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:43:26,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:26,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:43:26,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:43:26,543 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:26,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:26,667 INFO L93 Difference]: Finished difference Result 215 states and 283 transitions. [2022-11-25 16:43:26,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:43:26,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2022-11-25 16:43:26,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:26,671 INFO L225 Difference]: With dead ends: 215 [2022-11-25 16:43:26,671 INFO L226 Difference]: Without dead ends: 133 [2022-11-25 16:43:26,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:43:26,673 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 179 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:26,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 390 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:43:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-25 16:43:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2022-11-25 16:43:26,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 110 states have internal predecessors, (131), 19 states have call successors, (19), 13 states have call predecessors, (19), 13 states have return successors, (20), 13 states have call predecessors, (20), 19 states have call successors, (20) [2022-11-25 16:43:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 170 transitions. [2022-11-25 16:43:26,698 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 170 transitions. Word has length 31 [2022-11-25 16:43:26,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:26,699 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 170 transitions. [2022-11-25 16:43:26,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 170 transitions. [2022-11-25 16:43:26,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 16:43:26,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:26,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:26,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:43:26,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:26,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:26,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1209618062, now seen corresponding path program 1 times [2022-11-25 16:43:26,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:26,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140353792] [2022-11-25 16:43:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:26,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:43:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:26,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:26,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140353792] [2022-11-25 16:43:26,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140353792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:26,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:26,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:43:26,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806459223] [2022-11-25 16:43:26,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:26,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:43:26,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:26,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:43:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:43:26,930 INFO L87 Difference]: Start difference. First operand 130 states and 170 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:27,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:27,055 INFO L93 Difference]: Finished difference Result 370 states and 504 transitions. [2022-11-25 16:43:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:43:27,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 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 34 [2022-11-25 16:43:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:27,065 INFO L225 Difference]: With dead ends: 370 [2022-11-25 16:43:27,065 INFO L226 Difference]: Without dead ends: 247 [2022-11-25 16:43:27,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:43:27,068 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 85 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:27,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 476 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:43:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-25 16:43:27,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 241. [2022-11-25 16:43:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 178 states have (on average 1.3314606741573034) internal successors, (237), 201 states have internal predecessors, (237), 38 states have call successors, (38), 26 states have call predecessors, (38), 24 states have return successors, (43), 24 states have call predecessors, (43), 38 states have call successors, (43) [2022-11-25 16:43:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2022-11-25 16:43:27,141 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 34 [2022-11-25 16:43:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:27,142 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2022-11-25 16:43:27,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2022-11-25 16:43:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-25 16:43:27,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:27,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:27,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:43:27,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1932223763, now seen corresponding path program 1 times [2022-11-25 16:43:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:27,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557566422] [2022-11-25 16:43:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:27,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:43:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:27,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:27,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557566422] [2022-11-25 16:43:27,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557566422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:27,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:27,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:43:27,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274500582] [2022-11-25 16:43:27,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:27,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:43:27,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:43:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:43:27,256 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:27,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:27,312 INFO L93 Difference]: Finished difference Result 536 states and 724 transitions. [2022-11-25 16:43:27,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:43:27,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 36 [2022-11-25 16:43:27,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:27,316 INFO L225 Difference]: With dead ends: 536 [2022-11-25 16:43:27,316 INFO L226 Difference]: Without dead ends: 302 [2022-11-25 16:43:27,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:43:27,319 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 66 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:27,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 200 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:43:27,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-11-25 16:43:27,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 298. [2022-11-25 16:43:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 225 states have (on average 1.28) internal successors, (288), 240 states have internal predecessors, (288), 38 states have call successors, (38), 35 states have call predecessors, (38), 34 states have return successors, (54), 35 states have call predecessors, (54), 38 states have call successors, (54) [2022-11-25 16:43:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 380 transitions. [2022-11-25 16:43:27,371 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 380 transitions. Word has length 36 [2022-11-25 16:43:27,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:27,371 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 380 transitions. [2022-11-25 16:43:27,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:43:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 380 transitions. [2022-11-25 16:43:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 16:43:27,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:27,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:27,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:43:27,374 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:27,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:27,375 INFO L85 PathProgramCache]: Analyzing trace with hash 886066804, now seen corresponding path program 1 times [2022-11-25 16:43:27,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:27,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912404463] [2022-11-25 16:43:27,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:27,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:27,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:43:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:27,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:43:27,468 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:43:27,469 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 16:43:27,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:43:27,476 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-25 16:43:27,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:43:27,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:43:27 BoogieIcfgContainer [2022-11-25 16:43:27,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:43:27,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:43:27,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:43:27,549 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:43:27,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:25" (3/4) ... [2022-11-25 16:43:27,551 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 16:43:27,634 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:43:27,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:43:27,640 INFO L158 Benchmark]: Toolchain (without parser) took 3452.42ms. Allocated memory is still 157.3MB. Free memory was 125.8MB in the beginning and 92.8MB in the end (delta: 33.1MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-11-25 16:43:27,641 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:43:27,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.42ms. Allocated memory is still 157.3MB. Free memory was 125.8MB in the beginning and 106.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 16:43:27,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.00ms. Allocated memory is still 157.3MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:27,642 INFO L158 Benchmark]: Boogie Preprocessor took 35.99ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 102.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:27,642 INFO L158 Benchmark]: RCFGBuilder took 604.58ms. Allocated memory is still 157.3MB. Free memory was 102.8MB in the beginning and 84.8MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 16:43:27,642 INFO L158 Benchmark]: TraceAbstraction took 2059.80ms. Allocated memory is still 157.3MB. Free memory was 84.0MB in the beginning and 97.0MB in the end (delta: -12.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:43:27,643 INFO L158 Benchmark]: Witness Printer took 91.87ms. Allocated memory is still 157.3MB. Free memory was 97.0MB in the beginning and 92.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:27,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.42ms. Allocated memory is still 157.3MB. Free memory was 125.8MB in the beginning and 106.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.00ms. Allocated memory is still 157.3MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.99ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 102.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.58ms. Allocated memory is still 157.3MB. Free memory was 102.8MB in the beginning and 84.8MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2059.80ms. Allocated memory is still 157.3MB. Free memory was 84.0MB in the beginning and 97.0MB in the end (delta: -12.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 91.87ms. Allocated memory is still 157.3MB. Free memory was 97.0MB in the beginning and 92.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L960] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L972] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] COND TRUE waterLevel < 2 [L616] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L972] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L996] tmp___1 = __VERIFIER_nondet_int() [L998] COND TRUE \read(tmp___1) [L1000] CALL stopSystem() [L930] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L937] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1000] RET stopSystem() [L1007] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L711] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L718] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L726] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L566] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L576] CALL, EXPR isPumpRunning() [L844] int retValue_acc ; [L847] retValue_acc = pumpRunning [L848] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L576] RET, EXPR isPumpRunning() [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) [L582] CALL __automaton_fail() [L1023] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 351 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 347 mSDsluCounter, 1411 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 782 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 629 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 16:43:27,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b6febb4-b405-427d-9679-1532ee0110b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE