./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa --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 dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:34:35,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:34:35,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:34:35,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:34:35,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:34:35,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:34:35,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:34:35,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:34:35,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:34:35,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:34:35,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:34:35,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:34:35,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:34:35,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:34:35,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:34:35,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:34:35,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:34:35,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:34:35,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:34:35,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:34:35,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:34:35,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:34:35,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:34:35,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:34:35,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:34:35,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:34:35,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:34:35,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:34:35,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:34:35,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:34:35,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:34:35,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:34:35,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:34:35,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:34:35,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:34:35,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:34:35,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:34:35,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:34:35,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:34:35,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:34:35,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:34:35,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 19:34:35,678 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:34:35,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:34:35,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:34:35,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:34:35,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:34:35,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:34:35,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:34:35,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:34:35,680 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:34:35,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:34:35,680 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:34:35,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:34:35,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:34:35,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:34:35,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:34:35,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:34:35,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:34:35,681 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:34:35,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:34:35,681 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:34:35,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:34:35,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:34:35,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:34:35,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:34:35,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:34:35,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:34:35,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:34:35,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:34:35,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:34:35,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:34:35,683 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:34:35,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:34:35,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:34:35,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:34:35,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a [2021-12-06 19:34:35,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:34:35,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:34:35,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:34:35,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:34:35,882 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:34:35,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-06 19:34:35,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/data/8c10153da/0d1d606a850c444db231fd0c7af07108/FLAG853d74ff7 [2021-12-06 19:34:36,352 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:34:36,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-06 19:34:36,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/data/8c10153da/0d1d606a850c444db231fd0c7af07108/FLAG853d74ff7 [2021-12-06 19:34:36,372 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/data/8c10153da/0d1d606a850c444db231fd0c7af07108 [2021-12-06 19:34:36,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:34:36,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:34:36,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:34:36,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:34:36,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:34:36,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf7669e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36, skipping insertion in model container [2021-12-06 19:34:36,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:34:36,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:34:36,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2021-12-06 19:34:36,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:34:36,608 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:34:36,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2021-12-06 19:34:36,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:34:36,670 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:34:36,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36 WrapperNode [2021-12-06 19:34:36,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:34:36,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:34:36,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:34:36,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:34:36,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,708 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 227 [2021-12-06 19:34:36,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:34:36,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:34:36,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:34:36,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:34:36,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:34:36,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:34:36,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:34:36,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:34:36,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (1/1) ... [2021-12-06 19:34:36,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:34:36,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:34:36,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:34:36,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:34:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:34:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-06 19:34:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-06 19:34:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 19:34:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 19:34:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-06 19:34:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-06 19:34:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 19:34:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 19:34:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 19:34:36,794 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 19:34:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:34:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 19:34:36,795 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 19:34:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:34:36,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:34:36,858 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:34:36,860 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:34:37,065 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:34:37,070 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:34:37,070 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 19:34:37,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:34:37 BoogieIcfgContainer [2021-12-06 19:34:37,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:34:37,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:34:37,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:34:37,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:34:37,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:34:36" (1/3) ... [2021-12-06 19:34:37,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef63857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:34:37, skipping insertion in model container [2021-12-06 19:34:37,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:36" (2/3) ... [2021-12-06 19:34:37,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef63857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:34:37, skipping insertion in model container [2021-12-06 19:34:37,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:34:37" (3/3) ... [2021-12-06 19:34:37,077 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2021-12-06 19:34:37,081 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:34:37,081 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:34:37,115 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:34:37,120 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:34:37,120 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:34:37,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-06 19:34:37,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 19:34:37,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:37,139 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:37,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:37,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1839487273, now seen corresponding path program 1 times [2021-12-06 19:34:37,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:37,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630266359] [2021-12-06 19:34:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:37,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:34:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:37,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:37,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630266359] [2021-12-06 19:34:37,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630266359] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:37,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:37,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:34:37,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695035028] [2021-12-06 19:34:37,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:37,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 19:34:37,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:37,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 19:34:37,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:34:37,331 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:37,353 INFO L93 Difference]: Finished difference Result 150 states and 203 transitions. [2021-12-06 19:34:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:34:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-06 19:34:37,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:37,365 INFO L225 Difference]: With dead ends: 150 [2021-12-06 19:34:37,365 INFO L226 Difference]: Without dead ends: 70 [2021-12-06 19:34:37,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:34:37,373 INFO L933 BasicCegarLoop]: 98 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, 98 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 [2021-12-06 19:34:37,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:34:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-12-06 19:34:37,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-12-06 19:34:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-06 19:34:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2021-12-06 19:34:37,417 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 23 [2021-12-06 19:34:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:37,417 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2021-12-06 19:34:37,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2021-12-06 19:34:37,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 19:34:37,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:37,420 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:37,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:34:37,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1995101318, now seen corresponding path program 1 times [2021-12-06 19:34:37,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:37,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271721991] [2021-12-06 19:34:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:37,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:34:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:37,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:37,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271721991] [2021-12-06 19:34:37,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271721991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:37,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:37,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:34:37,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737441763] [2021-12-06 19:34:37,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:37,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:34:37,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:37,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:34:37,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:34:37,485 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:37,499 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2021-12-06 19:34:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:34:37,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-06 19:34:37,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:37,501 INFO L225 Difference]: With dead ends: 101 [2021-12-06 19:34:37,501 INFO L226 Difference]: Without dead ends: 61 [2021-12-06 19:34:37,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:34:37,503 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 18 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 130 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 [2021-12-06 19:34:37,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:34:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-06 19:34:37,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-12-06 19:34:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 19:34:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2021-12-06 19:34:37,511 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 24 [2021-12-06 19:34:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:37,511 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2021-12-06 19:34:37,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,512 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2021-12-06 19:34:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 19:34:37,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:37,513 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:37,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:34:37,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:37,514 INFO L85 PathProgramCache]: Analyzing trace with hash 613473394, now seen corresponding path program 1 times [2021-12-06 19:34:37,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:37,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100593688] [2021-12-06 19:34:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:37,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:34:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:37,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:37,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100593688] [2021-12-06 19:34:37,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100593688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:37,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:37,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:34:37,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797046458] [2021-12-06 19:34:37,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:37,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:34:37,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:37,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:34:37,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:34:37,581 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:37,639 INFO L93 Difference]: Finished difference Result 154 states and 199 transitions. [2021-12-06 19:34:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:34:37,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-06 19:34:37,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:37,641 INFO L225 Difference]: With dead ends: 154 [2021-12-06 19:34:37,641 INFO L226 Difference]: Without dead ends: 100 [2021-12-06 19:34:37,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:34:37,642 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 145 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:37,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 264 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:34:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-12-06 19:34:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 95. [2021-12-06 19:34:37,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 82 states have internal predecessors, (101), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2021-12-06 19:34:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2021-12-06 19:34:37,655 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 29 [2021-12-06 19:34:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:37,655 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2021-12-06 19:34:37,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2021-12-06 19:34:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:34:37,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:37,657 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:37,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:34:37,657 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2110247573, now seen corresponding path program 1 times [2021-12-06 19:34:37,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:37,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441708500] [2021-12-06 19:34:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:37,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:34:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:37,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:37,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441708500] [2021-12-06 19:34:37,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441708500] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:37,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:37,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:34:37,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302835481] [2021-12-06 19:34:37,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:37,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:34:37,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:34:37,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:34:37,719 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 5 states, 5 states have (on average 5.8) 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) [2021-12-06 19:34:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:37,771 INFO L93 Difference]: Finished difference Result 228 states and 302 transitions. [2021-12-06 19:34:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:34:37,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) 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 [2021-12-06 19:34:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:37,773 INFO L225 Difference]: With dead ends: 228 [2021-12-06 19:34:37,773 INFO L226 Difference]: Without dead ends: 140 [2021-12-06 19:34:37,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:34:37,775 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 50 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:37,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 296 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:34:37,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-12-06 19:34:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 131. [2021-12-06 19:34:37,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 110 states have internal predecessors, (132), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-06 19:34:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 164 transitions. [2021-12-06 19:34:37,792 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 164 transitions. Word has length 32 [2021-12-06 19:34:37,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:37,792 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 164 transitions. [2021-12-06 19:34:37,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) 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) [2021-12-06 19:34:37,793 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 164 transitions. [2021-12-06 19:34:37,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 19:34:37,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:37,794 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:37,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:34:37,794 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:37,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:37,795 INFO L85 PathProgramCache]: Analyzing trace with hash -304840246, now seen corresponding path program 1 times [2021-12-06 19:34:37,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:37,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752684290] [2021-12-06 19:34:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:37,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:34:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:37,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:37,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752684290] [2021-12-06 19:34:37,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752684290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:37,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:37,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:34:37,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214157847] [2021-12-06 19:34:37,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:37,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:34:37,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:37,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:34:37,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:34:37,841 INFO L87 Difference]: Start difference. First operand 131 states and 164 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:37,876 INFO L93 Difference]: Finished difference Result 269 states and 344 transitions. [2021-12-06 19:34:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:34:37,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 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 38 [2021-12-06 19:34:37,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:37,878 INFO L225 Difference]: With dead ends: 269 [2021-12-06 19:34:37,878 INFO L226 Difference]: Without dead ends: 145 [2021-12-06 19:34:37,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:34:37,880 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 33 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:37,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 349 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:34:37,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-12-06 19:34:37,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 134. [2021-12-06 19:34:37,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 113 states have internal predecessors, (135), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-06 19:34:37,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2021-12-06 19:34:37,894 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 38 [2021-12-06 19:34:37,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:37,895 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2021-12-06 19:34:37,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,895 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2021-12-06 19:34:37,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 19:34:37,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:37,897 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:37,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:34:37,897 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:37,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:37,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1325908600, now seen corresponding path program 1 times [2021-12-06 19:34:37,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:37,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885834813] [2021-12-06 19:34:37,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:37,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:34:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:37,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:37,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885834813] [2021-12-06 19:34:37,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885834813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:37,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:37,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:34:37,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246907765] [2021-12-06 19:34:37,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:37,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:34:37,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:37,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:34:37,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:34:37,934 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:37,954 INFO L93 Difference]: Finished difference Result 277 states and 355 transitions. [2021-12-06 19:34:37,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:34:37,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 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 38 [2021-12-06 19:34:37,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:37,956 INFO L225 Difference]: With dead ends: 277 [2021-12-06 19:34:37,956 INFO L226 Difference]: Without dead ends: 150 [2021-12-06 19:34:37,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:34:37,958 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 27 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:37,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 238 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:34:37,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-12-06 19:34:37,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 136. [2021-12-06 19:34:37,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 107 states have (on average 1.280373831775701) internal successors, (137), 115 states have internal predecessors, (137), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-06 19:34:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 169 transitions. [2021-12-06 19:34:37,970 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 169 transitions. Word has length 38 [2021-12-06 19:34:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:37,970 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 169 transitions. [2021-12-06 19:34:37,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:37,970 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 169 transitions. [2021-12-06 19:34:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 19:34:37,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:37,972 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:37,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:34:37,972 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:37,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash 974913990, now seen corresponding path program 1 times [2021-12-06 19:34:37,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:37,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996667228] [2021-12-06 19:34:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:37,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:34:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:38,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:38,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996667228] [2021-12-06 19:34:38,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996667228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:38,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:38,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:34:38,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56334121] [2021-12-06 19:34:38,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:38,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:34:38,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:38,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:34:38,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:34:38,007 INFO L87 Difference]: Start difference. First operand 136 states and 169 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:38,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:38,027 INFO L93 Difference]: Finished difference Result 340 states and 431 transitions. [2021-12-06 19:34:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:34:38,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-12-06 19:34:38,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:38,030 INFO L225 Difference]: With dead ends: 340 [2021-12-06 19:34:38,031 INFO L226 Difference]: Without dead ends: 211 [2021-12-06 19:34:38,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:34:38,032 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 38 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:38,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 145 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:34:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-12-06 19:34:38,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-12-06 19:34:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.2590361445783131) internal successors, (209), 176 states have internal predecessors, (209), 23 states have call successors, (23), 23 states have call predecessors, (23), 21 states have return successors, (28), 21 states have call predecessors, (28), 23 states have call successors, (28) [2021-12-06 19:34:38,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 260 transitions. [2021-12-06 19:34:38,054 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 260 transitions. Word has length 38 [2021-12-06 19:34:38,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:38,054 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 260 transitions. [2021-12-06 19:34:38,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:34:38,055 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 260 transitions. [2021-12-06 19:34:38,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 19:34:38,057 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:38,057 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:38,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:34:38,057 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:38,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:38,058 INFO L85 PathProgramCache]: Analyzing trace with hash -457608212, now seen corresponding path program 1 times [2021-12-06 19:34:38,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:38,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131726555] [2021-12-06 19:34:38,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:38,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 19:34:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:38,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 19:34:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:34:38,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:38,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131726555] [2021-12-06 19:34:38,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131726555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:38,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:38,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:34:38,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994394517] [2021-12-06 19:34:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:38,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:34:38,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:38,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:34:38,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:34:38,159 INFO L87 Difference]: Start difference. First operand 211 states and 260 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:34:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:38,347 INFO L93 Difference]: Finished difference Result 712 states and 904 transitions. [2021-12-06 19:34:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:34:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2021-12-06 19:34:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:38,351 INFO L225 Difference]: With dead ends: 712 [2021-12-06 19:34:38,351 INFO L226 Difference]: Without dead ends: 508 [2021-12-06 19:34:38,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:34:38,353 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 115 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:38,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 396 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:34:38,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-12-06 19:34:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 481. [2021-12-06 19:34:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 376 states have (on average 1.2287234042553192) internal successors, (462), 405 states have internal predecessors, (462), 54 states have call successors, (54), 46 states have call predecessors, (54), 50 states have return successors, (77), 50 states have call predecessors, (77), 54 states have call successors, (77) [2021-12-06 19:34:38,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 593 transitions. [2021-12-06 19:34:38,384 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 593 transitions. Word has length 42 [2021-12-06 19:34:38,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:38,385 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 593 transitions. [2021-12-06 19:34:38,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:34:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 593 transitions. [2021-12-06 19:34:38,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 19:34:38,386 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:38,386 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:34:38,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:34:38,387 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:34:38,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:38,387 INFO L85 PathProgramCache]: Analyzing trace with hash -212622224, now seen corresponding path program 1 times [2021-12-06 19:34:38,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:38,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616707962] [2021-12-06 19:34:38,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:38,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:34:38,400 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:34:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:34:38,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:34:38,431 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:34:38,432 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 19:34:38,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:34:38,436 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:34:38,438 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:34:38,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:34:38 BoogieIcfgContainer [2021-12-06 19:34:38,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:34:38,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:34:38,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:34:38,476 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:34:38,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:34:37" (3/4) ... [2021-12-06 19:34:38,477 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 19:34:38,526 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 19:34:38,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:34:38,526 INFO L158 Benchmark]: Toolchain (without parser) took 2151.44ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 57.6MB in the beginning and 42.9MB in the end (delta: 14.7MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2021-12-06 19:34:38,527 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:34:38,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.81ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 67.4MB in the end (delta: -10.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:34:38,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.78ms. Allocated memory is still 98.6MB. Free memory was 67.4MB in the beginning and 65.0MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:34:38,528 INFO L158 Benchmark]: Boogie Preprocessor took 19.86ms. Allocated memory is still 98.6MB. Free memory was 65.0MB in the beginning and 63.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:34:38,528 INFO L158 Benchmark]: RCFGBuilder took 342.59ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 48.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 19:34:38,528 INFO L158 Benchmark]: TraceAbstraction took 1402.26ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 47.8MB in the beginning and 48.1MB in the end (delta: -326.5kB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-12-06 19:34:38,529 INFO L158 Benchmark]: Witness Printer took 50.37ms. Allocated memory is still 119.5MB. Free memory was 48.1MB in the beginning and 42.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:34:38,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.81ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 67.4MB in the end (delta: -10.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.78ms. Allocated memory is still 98.6MB. Free memory was 67.4MB in the beginning and 65.0MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.86ms. Allocated memory is still 98.6MB. Free memory was 65.0MB in the beginning and 63.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 342.59ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 48.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1402.26ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 47.8MB in the beginning and 48.1MB in the end (delta: -326.5kB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 50.37ms. Allocated memory is still 119.5MB. Free memory was 48.1MB in the beginning and 42.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L249] int waterLevel = 1; [L250] int methaneLevelCritical = 0; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] int retValue_acc ; [L917] int tmp ; [L921] FCALL select_helpers() [L922] FCALL select_features() [L923] CALL, EXPR valid_product() [L442] int retValue_acc ; [L445] retValue_acc = 1 [L446] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L923] RET, EXPR valid_product() [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L927] FCALL setup() [L928] CALL runTest() [L910] CALL test() [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L354] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L356] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L362] tmp = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L366] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] COND TRUE waterLevel < 2 [L268] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L366] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L372] tmp___0 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L376] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L279] COND FALSE !(\read(methaneLevelCritical)) [L282] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L376] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND TRUE \read(tmp___2) [L386] CALL startSystem() [L241] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L386] RET startSystem() [L401] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L107] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L110] COND TRUE ! pumpRunning [L112] CALL, EXPR isHighWaterLevel() [L204] int retValue_acc ; [L205] int tmp ; [L206] int tmp___0 ; [L210] CALL, EXPR isHighWaterSensorDry() [L329] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L332] COND FALSE !(waterLevel < 2) [L336] retValue_acc = 0 [L337] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L210] RET, EXPR isHighWaterSensorDry() [L210] tmp = isHighWaterSensorDry() [L212] COND FALSE !(\read(tmp)) [L215] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L217] retValue_acc = tmp___0 [L218] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L112] RET, EXPR isHighWaterLevel() [L112] tmp = isHighWaterLevel() [L114] COND TRUE \read(tmp) [L116] CALL activatePump() [L135] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L116] RET activatePump() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification1_spec__1() [L818] int tmp ; [L819] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L823] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L288] int retValue_acc ; [L291] retValue_acc = methaneLevelCritical [L292] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L823] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L823] tmp = isMethaneLevelCritical() [L825] COND TRUE \read(tmp) [L827] CALL, EXPR isPumpRunning() [L159] int retValue_acc ; [L162] retValue_acc = pumpRunning [L163] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L827] RET, EXPR isPumpRunning() [L827] tmp___0 = isPumpRunning() [L829] COND TRUE \read(tmp___0) [L831] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 439 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 426 mSDsluCounter, 1916 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1224 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 692 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=481occurred in iteration=8, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 66 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 580 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-06 19:34:38,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_782f3638-edc0-4c85-beee-0a85c5c6b909/bin/uautomizer-DrprNOufMa/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