./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8 --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 90a76a2882b85be994db917b0e3084e326cc29272a09018948be7f2d57c03e00 --- 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 [2022-12-13 17:59:03,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:59:03,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:59:03,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:59:03,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:59:03,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:59:03,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:59:03,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:59:03,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:59:03,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:59:03,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:59:03,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:59:03,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:59:03,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:59:03,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:59:03,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:59:03,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:59:03,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:59:03,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:59:03,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:59:03,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:59:03,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:59:03,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:59:03,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:59:03,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:59:03,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:59:03,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:59:03,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:59:03,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:59:03,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:59:03,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:59:03,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:59:03,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:59:03,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:59:03,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:59:03,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:59:03,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:59:03,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:59:03,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:59:03,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:59:03,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:59:03,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 17:59:03,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:59:03,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:59:03,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:59:03,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:59:03,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:59:03,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:59:03,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:59:03,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:59:03,529 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:59:03,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:59:03,530 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:59:03,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:59:03,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:59:03,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:59:03,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:59:03,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:59:03,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:59:03,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:59:03,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:59:03,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:59:03,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:59:03,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:59:03,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:59:03,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:59:03,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:59:03,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:59:03,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:59:03,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:59:03,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:59:03,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:59:03,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:59:03,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:59:03,539 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:59:03,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:59:03,539 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:59:03,540 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_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90a76a2882b85be994db917b0e3084e326cc29272a09018948be7f2d57c03e00 [2022-12-13 17:59:03,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:59:03,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:59:03,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:59:03,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:59:03,746 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:59:03,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2022-12-13 17:59:06,333 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:59:06,478 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:59:06,478 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2022-12-13 17:59:06,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/data/c221c29a5/1ab94da3556d41f0bfa507bb883e2495/FLAGe84c22558 [2022-12-13 17:59:06,496 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/data/c221c29a5/1ab94da3556d41f0bfa507bb883e2495 [2022-12-13 17:59:06,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:59:06,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:59:06,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:06,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:59:06,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:59:06,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449085a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06, skipping insertion in model container [2022-12-13 17:59:06,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:59:06,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:59:06,654 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_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c[3816,3829] [2022-12-13 17:59:06,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:06,715 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:59:06,728 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_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c[3816,3829] [2022-12-13 17:59:06,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:06,769 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:59:06,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06 WrapperNode [2022-12-13 17:59:06,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:06,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:06,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:59:06,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:59:06,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,801 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 216 [2022-12-13 17:59:06,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:06,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:59:06,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:59:06,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:59:06,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,817 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:59:06,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:59:06,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:59:06,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:59:06,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (1/1) ... [2022-12-13 17:59:06,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:59:06,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:06,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:59:06,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:59:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:59:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 17:59:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 17:59:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-13 17:59:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-13 17:59:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 17:59:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 17:59:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 17:59:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 17:59:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-13 17:59:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-13 17:59:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 17:59:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 17:59:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-12-13 17:59:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-12-13 17:59:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-13 17:59:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-13 17:59:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:59:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 17:59:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 17:59:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:59:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:59:06,937 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:59:06,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:59:07,134 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:59:07,140 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:59:07,140 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 17:59:07,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:07 BoogieIcfgContainer [2022-12-13 17:59:07,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:59:07,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:59:07,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:59:07,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:59:07,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:59:06" (1/3) ... [2022-12-13 17:59:07,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166c6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:07, skipping insertion in model container [2022-12-13 17:59:07,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:06" (2/3) ... [2022-12-13 17:59:07,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166c6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:07, skipping insertion in model container [2022-12-13 17:59:07,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:07" (3/3) ... [2022-12-13 17:59:07,148 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2022-12-13 17:59:07,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:59:07,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 17:59:07,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:59:07,210 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;@225ac762, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:59:07,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 17:59:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 84 states have internal predecessors, (102), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-13 17:59:07,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 17:59:07,220 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:07,220 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] [2022-12-13 17:59:07,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:07,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:07,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2143946218, now seen corresponding path program 1 times [2022-12-13 17:59:07,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:07,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389834679] [2022-12-13 17:59:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:07,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 17:59:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:07,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:07,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389834679] [2022-12-13 17:59:07,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389834679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:07,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:07,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:59:07,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880654099] [2022-12-13 17:59:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:07,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:59:07,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:07,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:59:07,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:59:07,404 INFO L87 Difference]: Start difference. First operand has 101 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 84 states have internal predecessors, (102), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-12-13 17:59:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:07,430 INFO L93 Difference]: Finished difference Result 194 states and 263 transitions. [2022-12-13 17:59:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:59:07,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-12-13 17:59:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:07,438 INFO L225 Difference]: With dead ends: 194 [2022-12-13 17:59:07,438 INFO L226 Difference]: Without dead ends: 92 [2022-12-13 17:59:07,441 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 [2022-12-13 17:59:07,443 INFO L413 NwaCegarLoop]: 128 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, 128 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 [2022-12-13 17:59:07,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:59:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-13 17:59:07,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-12-13 17:59:07,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 76 states have internal predecessors, (88), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-13 17:59:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2022-12-13 17:59:07,475 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 23 [2022-12-13 17:59:07,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:07,475 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2022-12-13 17:59:07,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-12-13 17:59:07,476 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2022-12-13 17:59:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 17:59:07,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:07,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:07,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:59:07,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:07,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:07,478 INFO L85 PathProgramCache]: Analyzing trace with hash -985969136, now seen corresponding path program 1 times [2022-12-13 17:59:07,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:07,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077770066] [2022-12-13 17:59:07,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:07,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 17:59:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:07,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:07,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077770066] [2022-12-13 17:59:07,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077770066] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:07,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:07,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:07,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152080356] [2022-12-13 17:59:07,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:07,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:59:07,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:07,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:59:07,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:07,555 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-13 17:59:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:07,570 INFO L93 Difference]: Finished difference Result 149 states and 193 transitions. [2022-12-13 17:59:07,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:59:07,571 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), 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 24 [2022-12-13 17:59:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:07,572 INFO L225 Difference]: With dead ends: 149 [2022-12-13 17:59:07,572 INFO L226 Difference]: Without dead ends: 83 [2022-12-13 17:59:07,572 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 [2022-12-13 17:59:07,573 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 13 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 195 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 [2022-12-13 17:59:07,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 195 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:59:07,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-13 17:59:07,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-12-13 17:59:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 70 states have internal predecessors, (81), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 17:59:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-12-13 17:59:07,582 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 24 [2022-12-13 17:59:07,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:07,582 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-12-13 17:59:07,582 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), 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) [2022-12-13 17:59:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-12-13 17:59:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 17:59:07,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:07,583 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] [2022-12-13 17:59:07,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:59:07,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1408992143, now seen corresponding path program 1 times [2022-12-13 17:59:07,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:07,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355023360] [2022-12-13 17:59:07,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:07,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 17:59:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:07,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:07,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355023360] [2022-12-13 17:59:07,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355023360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:07,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:07,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:59:07,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824394703] [2022-12-13 17:59:07,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:07,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:07,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:07,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:07,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:07,676 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (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) [2022-12-13 17:59:07,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:07,724 INFO L93 Difference]: Finished difference Result 159 states and 208 transitions. [2022-12-13 17:59:07,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:59:07,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (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 29 [2022-12-13 17:59:07,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:07,726 INFO L225 Difference]: With dead ends: 159 [2022-12-13 17:59:07,726 INFO L226 Difference]: Without dead ends: 83 [2022-12-13 17:59:07,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:07,727 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 132 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:07,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 268 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:59:07,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-13 17:59:07,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-12-13 17:59:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 70 states have internal predecessors, (80), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 17:59:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2022-12-13 17:59:07,735 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 29 [2022-12-13 17:59:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:07,736 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2022-12-13 17:59:07,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (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) [2022-12-13 17:59:07,736 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2022-12-13 17:59:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 17:59:07,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:07,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:07,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:59:07,737 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:07,738 INFO L85 PathProgramCache]: Analyzing trace with hash 264525182, now seen corresponding path program 1 times [2022-12-13 17:59:07,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:07,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458315100] [2022-12-13 17:59:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:07,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 17:59:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 17:59:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 17:59:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:07,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 17:59:07,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:07,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458315100] [2022-12-13 17:59:07,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458315100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:07,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:07,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:07,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25000774] [2022-12-13 17:59:07,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:07,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:07,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:07,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:07,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:07,785 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 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) [2022-12-13 17:59:07,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:07,928 INFO L93 Difference]: Finished difference Result 236 states and 305 transitions. [2022-12-13 17:59:07,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:59:07,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 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 42 [2022-12-13 17:59:07,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:07,930 INFO L225 Difference]: With dead ends: 236 [2022-12-13 17:59:07,930 INFO L226 Difference]: Without dead ends: 160 [2022-12-13 17:59:07,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:07,933 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 158 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:07,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 209 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:59:07,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-13 17:59:07,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2022-12-13 17:59:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 122 states have internal predecessors, (145), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2022-12-13 17:59:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 194 transitions. [2022-12-13 17:59:07,959 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 194 transitions. Word has length 42 [2022-12-13 17:59:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:07,959 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 194 transitions. [2022-12-13 17:59:07,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 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) [2022-12-13 17:59:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 194 transitions. [2022-12-13 17:59:07,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 17:59:07,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:07,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:07,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:59:07,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:07,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:07,962 INFO L85 PathProgramCache]: Analyzing trace with hash -362273977, now seen corresponding path program 1 times [2022-12-13 17:59:07,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:07,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141944541] [2022-12-13 17:59:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:07,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 17:59:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:59:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 17:59:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:08,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:08,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141944541] [2022-12-13 17:59:08,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141944541] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:08,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:08,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:59:08,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893534909] [2022-12-13 17:59:08,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:08,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:59:08,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:08,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:59:08,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:59:08,090 INFO L87 Difference]: Start difference. First operand 154 states and 194 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:59:08,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:08,227 INFO L93 Difference]: Finished difference Result 309 states and 397 transitions. [2022-12-13 17:59:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:08,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-12-13 17:59:08,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:08,229 INFO L225 Difference]: With dead ends: 309 [2022-12-13 17:59:08,229 INFO L226 Difference]: Without dead ends: 162 [2022-12-13 17:59:08,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:59:08,232 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 70 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:08,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 405 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:59:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-12-13 17:59:08,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2022-12-13 17:59:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 117 states have (on average 1.264957264957265) internal successors, (148), 125 states have internal predecessors, (148), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2022-12-13 17:59:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 197 transitions. [2022-12-13 17:59:08,248 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 197 transitions. Word has length 48 [2022-12-13 17:59:08,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:08,248 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 197 transitions. [2022-12-13 17:59:08,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:59:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 197 transitions. [2022-12-13 17:59:08,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 17:59:08,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:08,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:08,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:59:08,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:08,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:08,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1179922427, now seen corresponding path program 1 times [2022-12-13 17:59:08,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:08,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240247115] [2022-12-13 17:59:08,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:08,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 17:59:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:59:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 17:59:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:08,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:08,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240247115] [2022-12-13 17:59:08,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240247115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:08,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:08,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:59:08,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655386518] [2022-12-13 17:59:08,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:08,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:59:08,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:08,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:59:08,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:08,363 INFO L87 Difference]: Start difference. First operand 157 states and 197 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:59:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:08,529 INFO L93 Difference]: Finished difference Result 320 states and 416 transitions. [2022-12-13 17:59:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:59:08,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-12-13 17:59:08,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:08,531 INFO L225 Difference]: With dead ends: 320 [2022-12-13 17:59:08,531 INFO L226 Difference]: Without dead ends: 170 [2022-12-13 17:59:08,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:59:08,533 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 111 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:08,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 456 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:59:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-13 17:59:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 159. [2022-12-13 17:59:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 127 states have internal predecessors, (150), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2022-12-13 17:59:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 199 transitions. [2022-12-13 17:59:08,545 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 199 transitions. Word has length 48 [2022-12-13 17:59:08,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:08,546 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 199 transitions. [2022-12-13 17:59:08,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:59:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 199 transitions. [2022-12-13 17:59:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 17:59:08,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:08,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:08,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:59:08,547 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:08,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash -961067709, now seen corresponding path program 1 times [2022-12-13 17:59:08,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:08,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942132525] [2022-12-13 17:59:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 17:59:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:59:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 17:59:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:08,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:08,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942132525] [2022-12-13 17:59:08,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942132525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:08,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:08,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:59:08,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607985072] [2022-12-13 17:59:08,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:08,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:08,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:08,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:08,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:08,620 INFO L87 Difference]: Start difference. First operand 159 states and 199 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 17:59:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:08,827 INFO L93 Difference]: Finished difference Result 447 states and 581 transitions. [2022-12-13 17:59:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2022-12-13 17:59:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:08,829 INFO L225 Difference]: With dead ends: 447 [2022-12-13 17:59:08,830 INFO L226 Difference]: Without dead ends: 295 [2022-12-13 17:59:08,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:08,831 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 213 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:08,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 330 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:59:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-12-13 17:59:08,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 287. [2022-12-13 17:59:08,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.2383177570093458) internal successors, (265), 226 states have internal predecessors, (265), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2022-12-13 17:59:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 363 transitions. [2022-12-13 17:59:08,866 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 363 transitions. Word has length 48 [2022-12-13 17:59:08,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:08,866 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 363 transitions. [2022-12-13 17:59:08,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 17:59:08,867 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 363 transitions. [2022-12-13 17:59:08,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 17:59:08,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:08,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:08,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:59:08,868 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:08,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:08,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1706490214, now seen corresponding path program 1 times [2022-12-13 17:59:08,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:08,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038094349] [2022-12-13 17:59:08,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:08,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 17:59:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:59:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:59:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:59:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:08,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:08,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038094349] [2022-12-13 17:59:08,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038094349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:08,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:08,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:59:08,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927206314] [2022-12-13 17:59:08,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:08,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:59:08,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:08,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:59:08,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:59:08,974 INFO L87 Difference]: Start difference. First operand 287 states and 363 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 17:59:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:09,161 INFO L93 Difference]: Finished difference Result 309 states and 393 transitions. [2022-12-13 17:59:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:59:09,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-12-13 17:59:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:09,163 INFO L225 Difference]: With dead ends: 309 [2022-12-13 17:59:09,163 INFO L226 Difference]: Without dead ends: 307 [2022-12-13 17:59:09,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:59:09,164 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 149 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:09,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 364 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:59:09,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-12-13 17:59:09,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 287. [2022-12-13 17:59:09,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.219626168224299) internal successors, (261), 226 states have internal predecessors, (261), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2022-12-13 17:59:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 359 transitions. [2022-12-13 17:59:09,181 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 359 transitions. Word has length 50 [2022-12-13 17:59:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:09,181 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 359 transitions. [2022-12-13 17:59:09,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 17:59:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 359 transitions. [2022-12-13 17:59:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-13 17:59:09,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:09,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:09,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:59:09,183 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:09,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:09,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1209258857, now seen corresponding path program 1 times [2022-12-13 17:59:09,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:09,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566444279] [2022-12-13 17:59:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:09,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:09,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:59:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:09,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 17:59:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:59:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:09,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 17:59:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:09,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566444279] [2022-12-13 17:59:09,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566444279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:09,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:09,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:59:09,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49363508] [2022-12-13 17:59:09,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:09,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:59:09,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:59:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:59:09,293 INFO L87 Difference]: Start difference. First operand 287 states and 359 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 17:59:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:09,805 INFO L93 Difference]: Finished difference Result 986 states and 1284 transitions. [2022-12-13 17:59:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 17:59:09,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2022-12-13 17:59:09,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:09,808 INFO L225 Difference]: With dead ends: 986 [2022-12-13 17:59:09,808 INFO L226 Difference]: Without dead ends: 706 [2022-12-13 17:59:09,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-12-13 17:59:09,809 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 336 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:09,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 342 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:59:09,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-12-13 17:59:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 649. [2022-12-13 17:59:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 478 states have (on average 1.1903765690376569) internal successors, (569), 509 states have internal predecessors, (569), 88 states have call successors, (88), 66 states have call predecessors, (88), 82 states have return successors, (167), 92 states have call predecessors, (167), 88 states have call successors, (167) [2022-12-13 17:59:09,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 824 transitions. [2022-12-13 17:59:09,848 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 824 transitions. Word has length 52 [2022-12-13 17:59:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:09,848 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 824 transitions. [2022-12-13 17:59:09,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 17:59:09,848 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 824 transitions. [2022-12-13 17:59:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 17:59:09,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:09,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:09,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:59:09,849 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:09,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:09,849 INFO L85 PathProgramCache]: Analyzing trace with hash 65909037, now seen corresponding path program 1 times [2022-12-13 17:59:09,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:09,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552652076] [2022-12-13 17:59:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:09,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:59:09,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:59:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:59:09,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:59:09,882 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:59:09,883 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 17:59:09,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:59:09,886 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:09,889 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:59:09,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:59:09 BoogieIcfgContainer [2022-12-13 17:59:09,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:59:09,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:59:09,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:59:09,918 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:59:09,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:07" (3/4) ... [2022-12-13 17:59:09,920 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 17:59:09,961 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:59:09,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:59:09,961 INFO L158 Benchmark]: Toolchain (without parser) took 3462.18ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 104.3MB in the beginning and 143.2MB in the end (delta: -38.9MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2022-12-13 17:59:09,961 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:59:09,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.87ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 85.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 17:59:09,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.78ms. Allocated memory is still 148.9MB. Free memory was 85.4MB in the beginning and 82.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:59:09,962 INFO L158 Benchmark]: Boogie Preprocessor took 18.54ms. Allocated memory is still 148.9MB. Free memory was 82.9MB in the beginning and 81.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:59:09,962 INFO L158 Benchmark]: RCFGBuilder took 321.02ms. Allocated memory is still 148.9MB. Free memory was 81.2MB in the beginning and 64.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 17:59:09,962 INFO L158 Benchmark]: TraceAbstraction took 2774.21ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 63.5MB in the beginning and 49.3MB in the end (delta: 14.2MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2022-12-13 17:59:09,963 INFO L158 Benchmark]: Witness Printer took 43.02ms. Allocated memory is still 180.4MB. Free memory was 49.3MB in the beginning and 143.2MB in the end (delta: -93.9MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2022-12-13 17:59:09,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.87ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 85.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.78ms. Allocated memory is still 148.9MB. Free memory was 85.4MB in the beginning and 82.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.54ms. Allocated memory is still 148.9MB. Free memory was 82.9MB in the beginning and 81.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.02ms. Allocated memory is still 148.9MB. Free memory was 81.2MB in the beginning and 64.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2774.21ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 63.5MB in the beginning and 49.3MB in the end (delta: 14.2MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Witness Printer took 43.02ms. Allocated memory is still 180.4MB. Free memory was 49.3MB in the beginning and 143.2MB in the end (delta: -93.9MB). Peak memory consumption was 3.6MB. 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: 226]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L899] int waterLevel = 1; [L900] int methaneLevelCritical = 0; 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() [L497] int retValue_acc ; [L500] retValue_acc = 1 [L501] 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() [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L165] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L167] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L173] tmp = __VERIFIER_nondet_int() [L175] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L177] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L917] COND TRUE waterLevel < 2 [L918] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L177] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L187] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L929] COND FALSE !(\read(methaneLevelCritical)) [L932] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L187] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L197] CALL startSystem() [L466] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L197] RET startSystem() [L210] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L247] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L328] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L331] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L346] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L302] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L305] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L320] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L276] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L425] int retValue_acc ; [L426] int tmp ; [L427] int tmp___0 ; [L431] CALL, EXPR isHighWaterSensorDry() [L979] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L982] COND FALSE !(waterLevel < 2) [L986] retValue_acc = 0 [L987] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L431] RET, EXPR isHighWaterSensorDry() [L431] tmp = isHighWaterSensorDry() [L433] COND FALSE !(\read(tmp)) [L436] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L438] retValue_acc = tmp___0 [L439] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND TRUE \read(tmp) [L285] CALL activatePump() [L356] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L285] RET activatePump() [L320] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L346] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification1_spec__1() [L507] int tmp ; [L508] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L512] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L938] int retValue_acc ; [L941] retValue_acc = methaneLevelCritical [L942] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L512] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L512] tmp = isMethaneLevelCritical() [L514] COND TRUE \read(tmp) [L516] CALL, EXPR isPumpRunning() [L380] int retValue_acc ; [L383] retValue_acc = pumpRunning [L384] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L516] RET, EXPR isPumpRunning() [L516] tmp___0 = isPumpRunning() [L518] COND TRUE \read(tmp___0) [L520] CALL __automaton_fail() [L226] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1217 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1182 mSDsluCounter, 2697 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1778 mSDsCounter, 344 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1310 IncrementalHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 344 mSolverCounterUnsat, 919 mSDtfsCounter, 1310 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=649occurred in iteration=9, InterpolantAutomatonStates: 71, 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, 9 MinimizatonAttempts, 107 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 683 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 3/3 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! [2022-12-13 17:59:09,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f03bef0-ddbb-4b53-94eb-992c2b58dbac/bin/uautomizer-uyxdKDjOR8/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