./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a211ea3558de7a91964968ab789e94c34171c05a0686de6a2a53ff72a198e9d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:28:11,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:28:11,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:28:11,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:28:11,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:28:11,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:28:11,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:28:11,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:28:11,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:28:11,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:28:11,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:28:11,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:28:11,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:28:11,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:28:11,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:28:11,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:28:11,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:28:11,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:28:11,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:28:11,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:28:11,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:28:11,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:28:11,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:28:11,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:28:11,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:28:11,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:28:11,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:28:11,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:28:11,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:28:11,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:28:11,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:28:11,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:28:11,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:28:11,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:28:11,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:28:11,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:28:11,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:28:11,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:28:11,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:28:11,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:28:11,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:28:11,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:28:11,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:28:11,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:28:11,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:28:11,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:28:11,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:28:11,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:28:11,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:28:11,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:28:11,887 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:28:11,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:28:11,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:28:11,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:28:11,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:28:11,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:28:11,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:28:11,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:28:11,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:28:11,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:28:11,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:28:11,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:28:11,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:28:11,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:28:11,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:28:11,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:28:11,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:28:11,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:28:11,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:28:11,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:28:11,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:28:11,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:28:11,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:28:11,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:28:11,894 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:28:11,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:28:11,894 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_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a211ea3558de7a91964968ab789e94c34171c05a0686de6a2a53ff72a198e9d [2022-11-25 15:28:12,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:28:12,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:28:12,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:28:12,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:28:12,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:28:12,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2022-11-25 15:28:15,273 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:28:15,613 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:28:15,621 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2022-11-25 15:28:15,645 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/data/cb9d5ca80/49bb752dd26a40bc80f969afdaa1eaed/FLAG19d5010f5 [2022-11-25 15:28:15,665 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/data/cb9d5ca80/49bb752dd26a40bc80f969afdaa1eaed [2022-11-25 15:28:15,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:28:15,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:28:15,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:28:15,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:28:15,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:28:15,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:28:15" (1/1) ... [2022-11-25 15:28:15,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b53d6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:15, skipping insertion in model container [2022-11-25 15:28:15,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:28:15" (1/1) ... [2022-11-25 15:28:15,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:28:15,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:28:16,091 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_ce69073a-2b79-442a-9232-88ca0347bbeb/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c[11718,11731] [2022-11-25 15:28:16,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:28:16,183 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:28:16,223 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_ce69073a-2b79-442a-9232-88ca0347bbeb/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c[11718,11731] [2022-11-25 15:28:16,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:28:16,269 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:28:16,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16 WrapperNode [2022-11-25 15:28:16,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:28:16,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:28:16,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:28:16,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:28:16,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,321 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 209 [2022-11-25 15:28:16,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:28:16,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:28:16,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:28:16,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:28:16,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,351 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:28:16,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:28:16,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:28:16,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:28:16,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (1/1) ... [2022-11-25 15:28:16,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:28:16,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:28:16,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:28:16,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:28:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:28:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-25 15:28:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-25 15:28:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 15:28:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 15:28:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 15:28:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 15:28:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-25 15:28:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-25 15:28:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-25 15:28:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-25 15:28:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-25 15:28:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-25 15:28:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-25 15:28:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-25 15:28:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:28:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-25 15:28:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-25 15:28:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:28:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:28:16,540 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:28:16,542 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:28:16,884 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:28:16,891 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:28:16,891 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 15:28:16,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:16 BoogieIcfgContainer [2022-11-25 15:28:16,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:28:16,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:28:16,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:28:16,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:28:16,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:28:15" (1/3) ... [2022-11-25 15:28:16,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d5d051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:28:16, skipping insertion in model container [2022-11-25 15:28:16,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:16" (2/3) ... [2022-11-25 15:28:16,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d5d051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:28:16, skipping insertion in model container [2022-11-25 15:28:16,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:16" (3/3) ... [2022-11-25 15:28:16,902 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2022-11-25 15:28:16,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:28:16,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:28:16,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:28:16,988 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;@6f718a37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:28:16,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:28:16,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 81 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-25 15:28:17,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 15:28:17,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:17,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:17,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:17,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash 296222788, now seen corresponding path program 1 times [2022-11-25 15:28:17,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:17,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983044457] [2022-11-25 15:28:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:17,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:17,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:17,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983044457] [2022-11-25 15:28:17,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983044457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:17,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:17,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:28:17,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375618235] [2022-11-25 15:28:17,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:17,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:28:17,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:17,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:28:17,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:28:17,350 INFO L87 Difference]: Start difference. First operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 81 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:17,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:17,427 INFO L93 Difference]: Finished difference Result 184 states and 249 transitions. [2022-11-25 15:28:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:28:17,430 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 15:28:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:17,443 INFO L225 Difference]: With dead ends: 184 [2022-11-25 15:28:17,443 INFO L226 Difference]: Without dead ends: 87 [2022-11-25 15:28:17,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:28:17,452 INFO L413 NwaCegarLoop]: 121 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, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:17,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:28:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-25 15:28:17,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-25 15:28:17,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 73 states have internal predecessors, (85), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:28:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2022-11-25 15:28:17,518 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 19 [2022-11-25 15:28:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:17,520 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2022-11-25 15:28:17,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2022-11-25 15:28:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 15:28:17,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:17,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:17,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:28:17,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:17,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1405283452, now seen corresponding path program 1 times [2022-11-25 15:28:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:17,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382907295] [2022-11-25 15:28:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:17,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:17,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:17,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382907295] [2022-11-25 15:28:17,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382907295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:17,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:17,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:28:17,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692003377] [2022-11-25 15:28:17,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:17,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:28:17,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:17,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:28:17,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:28:17,670 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:17,694 INFO L93 Difference]: Finished difference Result 135 states and 173 transitions. [2022-11-25 15:28:17,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:28:17,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 15:28:17,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:17,705 INFO L225 Difference]: With dead ends: 135 [2022-11-25 15:28:17,705 INFO L226 Difference]: Without dead ends: 78 [2022-11-25 15:28:17,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:28:17,709 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:17,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:28:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-25 15:28:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-25 15:28:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 67 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 15:28:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2022-11-25 15:28:17,725 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 20 [2022-11-25 15:28:17,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:17,725 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2022-11-25 15:28:17,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2022-11-25 15:28:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 15:28:17,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:17,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:17,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:28:17,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:17,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:17,728 INFO L85 PathProgramCache]: Analyzing trace with hash 552185447, now seen corresponding path program 1 times [2022-11-25 15:28:17,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:17,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237621108] [2022-11-25 15:28:17,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:17,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:17,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:17,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237621108] [2022-11-25 15:28:17,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237621108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:17,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:17,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:28:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522457684] [2022-11-25 15:28:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:17,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:28:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:17,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:28:17,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:28:17,833 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:17,868 INFO L93 Difference]: Finished difference Result 218 states and 285 transitions. [2022-11-25 15:28:17,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:28:17,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 15:28:17,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:17,871 INFO L225 Difference]: With dead ends: 218 [2022-11-25 15:28:17,871 INFO L226 Difference]: Without dead ends: 147 [2022-11-25 15:28:17,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:28:17,873 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 92 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:17,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 208 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:28:17,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-11-25 15:28:17,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2022-11-25 15:28:17,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 122 states have internal predecessors, (144), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-25 15:28:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 188 transitions. [2022-11-25 15:28:17,896 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 188 transitions. Word has length 25 [2022-11-25 15:28:17,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:17,897 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 188 transitions. [2022-11-25 15:28:17,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 188 transitions. [2022-11-25 15:28:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 15:28:17,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:17,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:17,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:28:17,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:17,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:17,900 INFO L85 PathProgramCache]: Analyzing trace with hash -513532902, now seen corresponding path program 1 times [2022-11-25 15:28:17,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:17,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661131580] [2022-11-25 15:28:17,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:17,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:18,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:18,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661131580] [2022-11-25 15:28:18,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661131580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:18,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:18,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:28:18,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267183129] [2022-11-25 15:28:18,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:18,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:28:18,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:18,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:28:18,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:28:18,106 INFO L87 Difference]: Start difference. First operand 144 states and 188 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:18,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:18,208 INFO L93 Difference]: Finished difference Result 406 states and 549 transitions. [2022-11-25 15:28:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:28:18,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 15:28:18,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:18,212 INFO L225 Difference]: With dead ends: 406 [2022-11-25 15:28:18,212 INFO L226 Difference]: Without dead ends: 269 [2022-11-25 15:28:18,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:18,215 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 71 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:18,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 403 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:28:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-25 15:28:18,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-11-25 15:28:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 198 states have (on average 1.3232323232323233) internal successors, (262), 225 states have internal predecessors, (262), 44 states have call successors, (44), 28 states have call predecessors, (44), 26 states have return successors, (46), 28 states have call predecessors, (46), 44 states have call successors, (46) [2022-11-25 15:28:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 352 transitions. [2022-11-25 15:28:18,251 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 352 transitions. Word has length 28 [2022-11-25 15:28:18,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:18,252 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 352 transitions. [2022-11-25 15:28:18,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:18,252 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 352 transitions. [2022-11-25 15:28:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 15:28:18,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:18,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:18,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:28:18,255 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1685401119, now seen corresponding path program 1 times [2022-11-25 15:28:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:18,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988431503] [2022-11-25 15:28:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:18,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:18,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:18,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:18,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988431503] [2022-11-25 15:28:18,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988431503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:18,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:18,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:28:18,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221482126] [2022-11-25 15:28:18,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:18,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:28:18,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:18,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:28:18,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:28:18,362 INFO L87 Difference]: Start difference. First operand 269 states and 352 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:18,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:18,423 INFO L93 Difference]: Finished difference Result 663 states and 883 transitions. [2022-11-25 15:28:18,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:28:18,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-25 15:28:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:18,427 INFO L225 Difference]: With dead ends: 663 [2022-11-25 15:28:18,428 INFO L226 Difference]: Without dead ends: 401 [2022-11-25 15:28:18,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:28:18,432 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 61 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:18,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 162 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:28:18,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-25 15:28:18,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 392. [2022-11-25 15:28:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 301 states have (on average 1.2790697674418605) internal successors, (385), 325 states have internal predecessors, (385), 47 states have call successors, (47), 45 states have call predecessors, (47), 43 states have return successors, (65), 42 states have call predecessors, (65), 47 states have call successors, (65) [2022-11-25 15:28:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 497 transitions. [2022-11-25 15:28:18,480 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 497 transitions. Word has length 30 [2022-11-25 15:28:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:18,481 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 497 transitions. [2022-11-25 15:28:18,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:28:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 497 transitions. [2022-11-25 15:28:18,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 15:28:18,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:18,483 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] [2022-11-25 15:28:18,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:28:18,483 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:18,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:18,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1358952576, now seen corresponding path program 1 times [2022-11-25 15:28:18,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:18,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126478125] [2022-11-25 15:28:18,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:18,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 15:28:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:18,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:18,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:18,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126478125] [2022-11-25 15:28:18,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126478125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:18,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:18,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:28:18,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643529100] [2022-11-25 15:28:18,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:18,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:28:18,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:18,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:28:18,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:28:18,677 INFO L87 Difference]: Start difference. First operand 392 states and 497 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:28:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:19,059 INFO L93 Difference]: Finished difference Result 482 states and 618 transitions. [2022-11-25 15:28:19,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:28:19,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-25 15:28:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:19,064 INFO L225 Difference]: With dead ends: 482 [2022-11-25 15:28:19,064 INFO L226 Difference]: Without dead ends: 480 [2022-11-25 15:28:19,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:28:19,066 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 144 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:19,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 339 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:28:19,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-25 15:28:19,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 454. [2022-11-25 15:28:19,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 347 states have (on average 1.2680115273775217) internal successors, (440), 381 states have internal predecessors, (440), 55 states have call successors, (55), 45 states have call predecessors, (55), 51 states have return successors, (85), 48 states have call predecessors, (85), 55 states have call successors, (85) [2022-11-25 15:28:19,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 580 transitions. [2022-11-25 15:28:19,122 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 580 transitions. Word has length 32 [2022-11-25 15:28:19,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:19,122 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 580 transitions. [2022-11-25 15:28:19,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:28:19,123 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 580 transitions. [2022-11-25 15:28:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 15:28:19,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:19,125 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] [2022-11-25 15:28:19,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:28:19,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:19,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:19,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1650408830, now seen corresponding path program 1 times [2022-11-25 15:28:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:19,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231261047] [2022-11-25 15:28:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:19,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 15:28:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 15:28:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:19,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:19,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231261047] [2022-11-25 15:28:19,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231261047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:19,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:19,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:28:19,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086301766] [2022-11-25 15:28:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:19,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:28:19,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:28:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:28:19,266 INFO L87 Difference]: Start difference. First operand 454 states and 580 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:28:19,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:19,666 INFO L93 Difference]: Finished difference Result 1015 states and 1348 transitions. [2022-11-25 15:28:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:28:19,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-11-25 15:28:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:19,673 INFO L225 Difference]: With dead ends: 1015 [2022-11-25 15:28:19,673 INFO L226 Difference]: Without dead ends: 568 [2022-11-25 15:28:19,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:28:19,688 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 174 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:19,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 255 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:28:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-11-25 15:28:19,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 498. [2022-11-25 15:28:19,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.251948051948052) internal successors, (482), 419 states have internal predecessors, (482), 55 states have call successors, (55), 45 states have call predecessors, (55), 57 states have return successors, (93), 52 states have call predecessors, (93), 55 states have call successors, (93) [2022-11-25 15:28:19,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 630 transitions. [2022-11-25 15:28:19,790 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 630 transitions. Word has length 51 [2022-11-25 15:28:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:19,794 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 630 transitions. [2022-11-25 15:28:19,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:28:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 630 transitions. [2022-11-25 15:28:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 15:28:19,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:19,799 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] [2022-11-25 15:28:19,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:28:19,800 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:19,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:19,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1431554112, now seen corresponding path program 1 times [2022-11-25 15:28:19,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:19,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624786702] [2022-11-25 15:28:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:19,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 15:28:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 15:28:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:19,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:19,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624786702] [2022-11-25 15:28:19,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624786702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:19,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:19,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:28:19,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687745427] [2022-11-25 15:28:19,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:19,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:28:19,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:19,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:28:19,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:19,994 INFO L87 Difference]: Start difference. First operand 498 states and 630 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:28:20,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:20,356 INFO L93 Difference]: Finished difference Result 967 states and 1261 transitions. [2022-11-25 15:28:20,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:28:20,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-11-25 15:28:20,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:20,361 INFO L225 Difference]: With dead ends: 967 [2022-11-25 15:28:20,361 INFO L226 Difference]: Without dead ends: 476 [2022-11-25 15:28:20,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:28:20,365 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 147 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:20,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 299 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:28:20,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-11-25 15:28:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 382. [2022-11-25 15:28:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 295 states have (on average 1.2508474576271187) internal successors, (369), 320 states have internal predecessors, (369), 44 states have call successors, (44), 36 states have call predecessors, (44), 42 states have return successors, (66), 39 states have call predecessors, (66), 44 states have call successors, (66) [2022-11-25 15:28:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 479 transitions. [2022-11-25 15:28:20,425 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 479 transitions. Word has length 51 [2022-11-25 15:28:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:20,428 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 479 transitions. [2022-11-25 15:28:20,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:28:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 479 transitions. [2022-11-25 15:28:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 15:28:20,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:20,430 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] [2022-11-25 15:28:20,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:28:20,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1516395324, now seen corresponding path program 1 times [2022-11-25 15:28:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:20,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713317912] [2022-11-25 15:28:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:20,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 15:28:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:20,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 15:28:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:20,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:20,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713317912] [2022-11-25 15:28:20,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713317912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:20,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:20,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:28:20,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892886981] [2022-11-25 15:28:20,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:20,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:28:20,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:20,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:28:20,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:20,597 INFO L87 Difference]: Start difference. First operand 382 states and 479 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:28:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:21,098 INFO L93 Difference]: Finished difference Result 886 states and 1177 transitions. [2022-11-25 15:28:21,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 15:28:21,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-11-25 15:28:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:21,103 INFO L225 Difference]: With dead ends: 886 [2022-11-25 15:28:21,105 INFO L226 Difference]: Without dead ends: 595 [2022-11-25 15:28:21,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:28:21,110 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 230 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:21,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 415 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:28:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-25 15:28:21,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 570. [2022-11-25 15:28:21,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 443 states have (on average 1.2257336343115124) internal successors, (543), 475 states have internal predecessors, (543), 63 states have call successors, (63), 53 states have call predecessors, (63), 63 states have return successors, (121), 64 states have call predecessors, (121), 63 states have call successors, (121) [2022-11-25 15:28:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 727 transitions. [2022-11-25 15:28:21,190 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 727 transitions. Word has length 51 [2022-11-25 15:28:21,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:21,191 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 727 transitions. [2022-11-25 15:28:21,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:28:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 727 transitions. [2022-11-25 15:28:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 15:28:21,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:21,195 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:21,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:28:21,195 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:21,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:21,196 INFO L85 PathProgramCache]: Analyzing trace with hash 390530219, now seen corresponding path program 1 times [2022-11-25 15:28:21,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:21,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525693851] [2022-11-25 15:28:21,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:21,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 15:28:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:28:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:28:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:21,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:21,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525693851] [2022-11-25 15:28:21,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525693851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:21,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:21,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:28:21,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107410992] [2022-11-25 15:28:21,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:21,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:28:21,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:21,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:28:21,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:21,334 INFO L87 Difference]: Start difference. First operand 570 states and 727 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 15:28:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:21,632 INFO L93 Difference]: Finished difference Result 957 states and 1219 transitions. [2022-11-25 15:28:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:28:21,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 74 [2022-11-25 15:28:21,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:21,637 INFO L225 Difference]: With dead ends: 957 [2022-11-25 15:28:21,637 INFO L226 Difference]: Without dead ends: 394 [2022-11-25 15:28:21,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:28:21,643 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 258 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:21,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 266 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:28:21,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-25 15:28:21,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 377. [2022-11-25 15:28:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 295 states have (on average 1.2203389830508475) internal successors, (360), 317 states have internal predecessors, (360), 41 states have call successors, (41), 36 states have call predecessors, (41), 40 states have return successors, (71), 41 states have call predecessors, (71), 41 states have call successors, (71) [2022-11-25 15:28:21,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 472 transitions. [2022-11-25 15:28:21,680 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 472 transitions. Word has length 74 [2022-11-25 15:28:21,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:21,680 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 472 transitions. [2022-11-25 15:28:21,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 15:28:21,682 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 472 transitions. [2022-11-25 15:28:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 15:28:21,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:21,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:21,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:28:21,686 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2087315147, now seen corresponding path program 1 times [2022-11-25 15:28:21,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:21,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729452561] [2022-11-25 15:28:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 15:28:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:28:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:28:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:28:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:28:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:28:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 15:28:21,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:21,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729452561] [2022-11-25 15:28:21,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729452561] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:28:21,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045331359] [2022-11-25 15:28:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:21,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:28:21,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:28:21,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:28:21,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:28:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:22,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:28:22,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:28:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:28:22,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:28:22,515 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 15:28:22,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045331359] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:28:22,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:28:22,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-11-25 15:28:22,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882822171] [2022-11-25 15:28:22,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:28:22,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:28:22,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:22,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:28:22,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:28:22,518 INFO L87 Difference]: Start difference. First operand 377 states and 472 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 15:28:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:23,238 INFO L93 Difference]: Finished difference Result 892 states and 1171 transitions. [2022-11-25 15:28:23,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 15:28:23,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 88 [2022-11-25 15:28:23,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:23,243 INFO L225 Difference]: With dead ends: 892 [2022-11-25 15:28:23,243 INFO L226 Difference]: Without dead ends: 590 [2022-11-25 15:28:23,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 187 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2022-11-25 15:28:23,246 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 316 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:23,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 518 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 15:28:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-11-25 15:28:23,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 509. [2022-11-25 15:28:23,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 394 states have (on average 1.2258883248730965) internal successors, (483), 425 states have internal predecessors, (483), 58 states have call successors, (58), 51 states have call predecessors, (58), 56 states have return successors, (106), 54 states have call predecessors, (106), 58 states have call successors, (106) [2022-11-25 15:28:23,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 647 transitions. [2022-11-25 15:28:23,295 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 647 transitions. Word has length 88 [2022-11-25 15:28:23,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:23,297 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 647 transitions. [2022-11-25 15:28:23,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 15:28:23,297 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 647 transitions. [2022-11-25 15:28:23,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 15:28:23,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:23,305 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:23,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:28:23,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 15:28:23,517 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash -717303076, now seen corresponding path program 2 times [2022-11-25 15:28:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:23,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311733258] [2022-11-25 15:28:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:23,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:28:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:23,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:28:23,585 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:28:23,586 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 15:28:23,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 15:28:23,591 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:23,594 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:28:23,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:28:23 BoogieIcfgContainer [2022-11-25 15:28:23,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:28:23,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:28:23,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:28:23,675 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:28:23,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:16" (3/4) ... [2022-11-25 15:28:23,677 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 15:28:23,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:28:23,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:28:23,827 INFO L158 Benchmark]: Toolchain (without parser) took 8156.94ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 172.1MB in the beginning and 209.7MB in the end (delta: -37.7MB). Peak memory consumption was 144.4MB. Max. memory is 16.1GB. [2022-11-25 15:28:23,828 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 138.4MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:28:23,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.79ms. Allocated memory is still 205.5MB. Free memory was 172.1MB in the beginning and 153.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 15:28:23,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.82ms. Allocated memory is still 205.5MB. Free memory was 153.3MB in the beginning and 151.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:23,829 INFO L158 Benchmark]: Boogie Preprocessor took 28.17ms. Allocated memory is still 205.5MB. Free memory was 151.2MB in the beginning and 149.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:23,830 INFO L158 Benchmark]: RCFGBuilder took 538.18ms. Allocated memory is still 205.5MB. Free memory was 149.1MB in the beginning and 132.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 15:28:23,830 INFO L158 Benchmark]: TraceAbstraction took 6778.90ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 132.4MB in the beginning and 79.3MB in the end (delta: 53.1MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:23,830 INFO L158 Benchmark]: Witness Printer took 151.74ms. Allocated memory is still 247.5MB. Free memory was 79.3MB in the beginning and 209.7MB in the end (delta: -130.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 15:28:23,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 138.4MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 596.79ms. Allocated memory is still 205.5MB. Free memory was 172.1MB in the beginning and 153.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.82ms. Allocated memory is still 205.5MB. Free memory was 153.3MB in the beginning and 151.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.17ms. Allocated memory is still 205.5MB. Free memory was 151.2MB in the beginning and 149.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.18ms. Allocated memory is still 205.5MB. Free memory was 149.1MB in the beginning and 132.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6778.90ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 132.4MB in the beginning and 79.3MB in the end (delta: 53.1MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. * Witness Printer took 151.74ms. Allocated memory is still 247.5MB. Free memory was 79.3MB in the beginning and 209.7MB in the end (delta: -130.4MB). Peak memory consumption was 8.4MB. 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: 449]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L248] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L566] int pumpRunning = 0; [L567] int systemActive = 1; [L784] int waterLevel = 1; [L785] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L536] int tmp ; [L540] FCALL select_helpers() [L541] FCALL select_features() [L542] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = 1 [L977] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L542] RET, EXPR valid_product() [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) [L546] FCALL setup() [L547] CALL runTest() [L526] CALL test() [L879] int splverifierCounter ; [L880] int tmp ; [L881] int tmp___0 ; [L882] int tmp___1 ; [L883] int tmp___2 ; [L886] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L888] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L890] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L896] tmp = __VERIFIER_nondet_int() [L898] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L900] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] COND TRUE waterLevel < 2 [L803] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L900] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L906] tmp___0 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L916] tmp___2 = __VERIFIER_nondet_int() [L918] COND TRUE \read(tmp___2) [L920] CALL startSystem() [L779] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L920] RET startSystem() [L935] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] COND TRUE \read(systemActive) [L582] CALL processEnvironment() [L628] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND TRUE ! pumpRunning [L607] CALL, EXPR isHighWaterLevel() [L742] int retValue_acc ; [L743] int tmp ; [L744] int tmp___0 ; [L748] CALL, EXPR isHighWaterSensorDry() [L864] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] COND FALSE !(waterLevel < 2) [L871] retValue_acc = 0 [L872] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L748] RET, EXPR isHighWaterSensorDry() [L748] tmp = isHighWaterSensorDry() [L750] COND FALSE !(\read(tmp)) [L753] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L755] retValue_acc = tmp___0 [L756] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L607] RET, EXPR isHighWaterLevel() [L607] tmp = isHighWaterLevel() [L609] COND TRUE \read(tmp) [L611] CALL activatePump() [L661] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] CALL, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] int retValue_acc ; [L690] CALL, EXPR isMethaneLevelCritical() [L823] int retValue_acc ; [L826] retValue_acc = methaneLevelCritical [L827] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L690] RET, EXPR isMethaneLevelCritical() [L690] retValue_acc = isMethaneLevelCritical() [L692] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L665] RET, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] tmp = isMethaneAlarm() [L667] COND FALSE !(\read(tmp)) [L671] CALL activatePump__wrappee__highWaterSensor() [L656] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L671] RET activatePump__wrappee__highWaterSensor() [L611] RET activatePump() [L646] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L582] RET processEnvironment() [L588] CALL __utac_acc__Specification4_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR getWaterLevel() [L855] int retValue_acc ; [L858] retValue_acc = waterLevel [L859] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L59] RET, EXPR getWaterLevel() [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L588] RET __utac_acc__Specification4_spec__1() [L935] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L888] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L890] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L896] tmp = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L906] tmp___0 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L916] tmp___2 = __VERIFIER_nondet_int() [L918] COND TRUE \read(tmp___2) [L920] CALL startSystem() [L779] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L920] RET startSystem() [L935] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L573] COND TRUE \read(pumpRunning) [L575] CALL lowerWaterLevel() [L790] COND TRUE waterLevel > 0 [L791] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L575] RET lowerWaterLevel() [L580] COND TRUE \read(systemActive) [L582] CALL processEnvironment() [L628] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L631] COND TRUE \read(pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L633] CALL, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L686] int retValue_acc ; [L690] CALL, EXPR isMethaneLevelCritical() [L823] int retValue_acc ; [L826] retValue_acc = methaneLevelCritical [L827] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L690] RET, EXPR isMethaneLevelCritical() [L690] retValue_acc = isMethaneLevelCritical() [L692] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L633] RET, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L633] tmp = isMethaneAlarm() [L635] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L641] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L602] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L605] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L620] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L641] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L582] RET processEnvironment() [L588] CALL __utac_acc__Specification4_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR getWaterLevel() [L855] int retValue_acc ; [L858] retValue_acc = waterLevel [L859] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L59] RET, EXPR getWaterLevel() [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L588] RET __utac_acc__Specification4_spec__1() [L935] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L888] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L890] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L896] tmp = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L906] tmp___0 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L916] tmp___2 = __VERIFIER_nondet_int() [L918] COND TRUE \read(tmp___2) [L920] CALL startSystem() [L779] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L920] RET startSystem() [L935] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L573] COND TRUE \read(pumpRunning) [L575] CALL lowerWaterLevel() [L790] COND TRUE waterLevel > 0 [L791] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L575] RET lowerWaterLevel() [L580] COND TRUE \read(systemActive) [L582] CALL processEnvironment() [L628] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L631] COND TRUE \read(pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L633] CALL, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L690] CALL, EXPR isMethaneLevelCritical() [L823] int retValue_acc ; [L826] retValue_acc = methaneLevelCritical [L827] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L690] RET, EXPR isMethaneLevelCritical() [L690] retValue_acc = isMethaneLevelCritical() [L692] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L633] RET, EXPR isMethaneAlarm() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L633] tmp = isMethaneAlarm() [L635] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L641] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L602] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L605] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L620] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L641] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L582] RET processEnvironment() [L588] CALL __utac_acc__Specification4_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR getWaterLevel() [L855] int retValue_acc ; [L858] retValue_acc = waterLevel [L859] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L59] RET, EXPR getWaterLevel() [L59] tmp = getWaterLevel() [L61] COND TRUE tmp == 0 [L63] CALL, EXPR isPumpRunning() [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L63] RET, EXPR isPumpRunning() [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) [L67] CALL __automaton_fail() [L449] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1540 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1510 mSDsluCounter, 3162 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2135 mSDsCounter, 404 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1887 IncrementalHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 404 mSolverCounterUnsat, 1027 mSDtfsCounter, 1887 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 335 GetRequests, 236 SyntacticMatches, 9 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=570occurred in iteration=9, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 325 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 682 NumberOfCodeBlocks, 682 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 1177 SizeOfPredicates, 4 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 67/90 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 15:28:23,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce69073a-2b79-442a-9232-88ca0347bbeb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE