./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a --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 a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:12:34,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:12:34,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:12:34,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:12:34,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:12:34,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:12:34,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:12:34,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:12:34,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:12:34,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:12:34,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:12:34,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:12:34,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:12:34,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:12:34,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:12:34,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:12:34,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:12:34,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:12:34,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:12:34,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:12:34,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:12:34,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:12:34,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:12:34,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:12:34,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:12:34,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:12:34,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:12:34,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:12:34,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:12:34,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:12:34,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:12:34,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:12:34,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:12:34,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:12:34,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:12:34,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:12:34,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:12:34,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:12:34,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:12:34,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:12:34,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:12:34,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 09:12:34,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:12:34,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:12:34,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:12:34,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:12:34,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:12:34,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:12:34,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:12:34,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:12:34,761 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:12:34,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:12:34,762 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:12:34,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:12:34,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:12:34,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:12:34,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:12:34,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:12:34,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:12:34,764 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:12:34,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:12:34,765 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:12:34,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:12:34,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:12:34,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:12:34,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:12:34,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:12:34,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:12:34,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:12:34,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:12:34,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:12:34,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:12:34,768 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:12:34,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:12:34,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:12:34,769 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_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 [2022-11-21 09:12:35,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:12:35,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:12:35,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:12:35,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:12:35,185 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:12:35,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2022-11-21 09:12:38,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:12:38,698 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:12:38,699 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2022-11-21 09:12:38,720 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/data/f5e04ba94/62ce6e137bcf4994a23b354afc6f5946/FLAG77909468e [2022-11-21 09:12:38,740 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/data/f5e04ba94/62ce6e137bcf4994a23b354afc6f5946 [2022-11-21 09:12:38,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:12:38,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:12:38,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:12:38,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:12:38,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:12:38,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:38" (1/1) ... [2022-11-21 09:12:38,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f877ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:38, skipping insertion in model container [2022-11-21 09:12:38,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:38" (1/1) ... [2022-11-21 09:12:38,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:12:38,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:12:39,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[19170,19183] [2022-11-21 09:12:39,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:12:39,297 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:12:39,362 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[19170,19183] [2022-11-21 09:12:39,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:12:39,381 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:12:39,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39 WrapperNode [2022-11-21 09:12:39,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:12:39,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:12:39,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:12:39,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:12:39,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,433 INFO L138 Inliner]: procedures = 58, calls = 102, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 223 [2022-11-21 09:12:39,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:12:39,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:12:39,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:12:39,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:12:39,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,459 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:12:39,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:12:39,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:12:39,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:12:39,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (1/1) ... [2022-11-21 09:12:39,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:12:39,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:39,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:12:39,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:12:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:12:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-21 09:12:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-21 09:12:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-21 09:12:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-21 09:12:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-21 09:12:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-21 09:12:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-21 09:12:39,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-21 09:12:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-21 09:12:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-21 09:12:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-21 09:12:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-21 09:12:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:12:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-21 09:12:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-21 09:12:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:12:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:12:39,678 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:12:39,681 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:12:40,078 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:12:40,086 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:12:40,086 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 09:12:40,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:40 BoogieIcfgContainer [2022-11-21 09:12:40,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:12:40,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:12:40,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:12:40,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:12:40,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:12:38" (1/3) ... [2022-11-21 09:12:40,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d49d86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:12:40, skipping insertion in model container [2022-11-21 09:12:40,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:39" (2/3) ... [2022-11-21 09:12:40,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d49d86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:12:40, skipping insertion in model container [2022-11-21 09:12:40,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:40" (3/3) ... [2022-11-21 09:12:40,109 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2022-11-21 09:12:40,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:12:40,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:12:40,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:12:40,220 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74c8c19c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:12:40,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:12:40,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-21 09:12:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 09:12:40,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:40,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:40,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:40,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:40,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1936540556, now seen corresponding path program 1 times [2022-11-21 09:12:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:40,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823630008] [2022-11-21 09:12:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:40,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-21 09:12:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:40,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823630008] [2022-11-21 09:12:40,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823630008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:40,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:40,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:12:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053743896] [2022-11-21 09:12:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:40,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 09:12:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:40,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 09:12:40,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 09:12:40,622 INFO L87 Difference]: Start difference. First operand has 94 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:40,699 INFO L93 Difference]: Finished difference Result 179 states and 244 transitions. [2022-11-21 09:12:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 09:12:40,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-21 09:12:40,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:40,713 INFO L225 Difference]: With dead ends: 179 [2022-11-21 09:12:40,714 INFO L226 Difference]: Without dead ends: 85 [2022-11-21 09:12:40,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 09:12:40,723 INFO L413 NwaCegarLoop]: 119 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, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:40,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-21 09:12:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-21 09:12:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 73 states have internal predecessors, (87), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-21 09:12:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2022-11-21 09:12:40,775 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 25 [2022-11-21 09:12:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:40,775 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2022-11-21 09:12:40,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2022-11-21 09:12:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 09:12:40,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:40,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:40,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:12:40,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:40,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:40,780 INFO L85 PathProgramCache]: Analyzing trace with hash -433728910, now seen corresponding path program 1 times [2022-11-21 09:12:40,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:40,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011441973] [2022-11-21 09:12:40,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:40,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 09:12:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:40,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:40,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011441973] [2022-11-21 09:12:40,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011441973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:40,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:40,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:40,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357717682] [2022-11-21 09:12:40,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:40,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:40,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:40,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:40,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:40,909 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:40,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:40,931 INFO L93 Difference]: Finished difference Result 134 states and 174 transitions. [2022-11-21 09:12:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:40,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-21 09:12:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:40,934 INFO L225 Difference]: With dead ends: 134 [2022-11-21 09:12:40,934 INFO L226 Difference]: Without dead ends: 76 [2022-11-21 09:12:40,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:40,937 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:40,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 177 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-21 09:12:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-21 09:12:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 67 states have internal predecessors, (80), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-21 09:12:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2022-11-21 09:12:40,948 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 26 [2022-11-21 09:12:40,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:40,949 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2022-11-21 09:12:40,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:40,949 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2022-11-21 09:12:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-21 09:12:40,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:40,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:40,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:12:40,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:40,953 INFO L85 PathProgramCache]: Analyzing trace with hash -960870689, now seen corresponding path program 1 times [2022-11-21 09:12:40,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:40,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654163687] [2022-11-21 09:12:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:40,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:41,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:41,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654163687] [2022-11-21 09:12:41,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654163687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:41,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:41,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:12:41,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723259963] [2022-11-21 09:12:41,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:41,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:12:41,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:41,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:12:41,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:41,113 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:41,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:41,192 INFO L93 Difference]: Finished difference Result 144 states and 189 transitions. [2022-11-21 09:12:41,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:12:41,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-11-21 09:12:41,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:41,195 INFO L225 Difference]: With dead ends: 144 [2022-11-21 09:12:41,195 INFO L226 Difference]: Without dead ends: 76 [2022-11-21 09:12:41,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:41,198 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 125 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:41,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 239 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-21 09:12:41,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-21 09:12:41,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 67 states have internal predecessors, (79), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-21 09:12:41,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2022-11-21 09:12:41,213 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 31 [2022-11-21 09:12:41,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:41,213 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2022-11-21 09:12:41,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:41,214 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2022-11-21 09:12:41,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-21 09:12:41,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:41,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:41,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:12:41,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:41,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:41,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1051649323, now seen corresponding path program 1 times [2022-11-21 09:12:41,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:41,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002154193] [2022-11-21 09:12:41,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:41,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 09:12:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:41,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:41,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002154193] [2022-11-21 09:12:41,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002154193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:41,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:41,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603765621] [2022-11-21 09:12:41,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:41,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:41,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:41,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:41,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:41,345 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:41,399 INFO L93 Difference]: Finished difference Result 189 states and 247 transitions. [2022-11-21 09:12:41,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:41,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 39 [2022-11-21 09:12:41,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:41,403 INFO L225 Difference]: With dead ends: 189 [2022-11-21 09:12:41,403 INFO L226 Difference]: Without dead ends: 121 [2022-11-21 09:12:41,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:41,406 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 60 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:41,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 173 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:41,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-21 09:12:41,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2022-11-21 09:12:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 101 states have internal predecessors, (121), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2022-11-21 09:12:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 151 transitions. [2022-11-21 09:12:41,434 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 151 transitions. Word has length 39 [2022-11-21 09:12:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:41,434 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 151 transitions. [2022-11-21 09:12:41,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:12:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 151 transitions. [2022-11-21 09:12:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-21 09:12:41,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:41,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:41,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:12:41,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:41,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:41,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1776043399, now seen corresponding path program 1 times [2022-11-21 09:12:41,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:41,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17902524] [2022-11-21 09:12:41,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:41,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 09:12:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:41,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:41,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17902524] [2022-11-21 09:12:41,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17902524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:41,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:41,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:12:41,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955048535] [2022-11-21 09:12:41,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:41,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:12:41,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:41,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:12:41,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:41,604 INFO L87 Difference]: Start difference. First operand 119 states and 151 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 09:12:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:41,866 INFO L93 Difference]: Finished difference Result 273 states and 359 transitions. [2022-11-21 09:12:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:12:41,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2022-11-21 09:12:41,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:41,869 INFO L225 Difference]: With dead ends: 273 [2022-11-21 09:12:41,869 INFO L226 Difference]: Without dead ends: 162 [2022-11-21 09:12:41,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:12:41,872 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 92 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:41,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 289 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-21 09:12:41,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 145. [2022-11-21 09:12:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.2982456140350878) internal successors, (148), 122 states have internal predecessors, (148), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-21 09:12:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 185 transitions. [2022-11-21 09:12:41,897 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 185 transitions. Word has length 47 [2022-11-21 09:12:41,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:41,898 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 185 transitions. [2022-11-21 09:12:41,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 09:12:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 185 transitions. [2022-11-21 09:12:41,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-21 09:12:41,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:41,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:41,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:12:41,901 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:41,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1353341573, now seen corresponding path program 1 times [2022-11-21 09:12:41,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:41,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764322318] [2022-11-21 09:12:41,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 09:12:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:42,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:42,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764322318] [2022-11-21 09:12:42,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764322318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:42,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:42,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:12:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977124511] [2022-11-21 09:12:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:42,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:12:42,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:12:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:12:42,113 INFO L87 Difference]: Start difference. First operand 145 states and 185 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-21 09:12:42,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:42,452 INFO L93 Difference]: Finished difference Result 294 states and 376 transitions. [2022-11-21 09:12:42,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:12:42,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-11-21 09:12:42,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:42,461 INFO L225 Difference]: With dead ends: 294 [2022-11-21 09:12:42,461 INFO L226 Difference]: Without dead ends: 157 [2022-11-21 09:12:42,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:12:42,472 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 116 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:42,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 399 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:42,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-21 09:12:42,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2022-11-21 09:12:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 120 states have internal predecessors, (142), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-21 09:12:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 179 transitions. [2022-11-21 09:12:42,516 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 179 transitions. Word has length 47 [2022-11-21 09:12:42,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:42,517 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 179 transitions. [2022-11-21 09:12:42,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-21 09:12:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 179 transitions. [2022-11-21 09:12:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-21 09:12:42,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:42,526 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:42,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:12:42,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:42,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:42,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1275147008, now seen corresponding path program 1 times [2022-11-21 09:12:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:42,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535812779] [2022-11-21 09:12:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:42,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 09:12:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:12:42,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:42,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535812779] [2022-11-21 09:12:42,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535812779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:42,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:42,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:12:42,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400224393] [2022-11-21 09:12:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:42,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:12:42,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:12:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:12:42,663 INFO L87 Difference]: Start difference. First operand 143 states and 179 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 09:12:42,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:42,898 INFO L93 Difference]: Finished difference Result 288 states and 371 transitions. [2022-11-21 09:12:42,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:12:42,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2022-11-21 09:12:42,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:42,900 INFO L225 Difference]: With dead ends: 288 [2022-11-21 09:12:42,900 INFO L226 Difference]: Without dead ends: 153 [2022-11-21 09:12:42,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:12:42,902 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 66 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:42,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 369 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:42,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-21 09:12:42,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2022-11-21 09:12:42,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 115 states have (on average 1.2608695652173914) internal successors, (145), 123 states have internal predecessors, (145), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-21 09:12:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 182 transitions. [2022-11-21 09:12:42,923 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 182 transitions. Word has length 53 [2022-11-21 09:12:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:42,924 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 182 transitions. [2022-11-21 09:12:42,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 09:12:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 182 transitions. [2022-11-21 09:12:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-21 09:12:42,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:42,926 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:42,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:12:42,927 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2034284420, now seen corresponding path program 1 times [2022-11-21 09:12:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:42,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63089919] [2022-11-21 09:12:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 09:12:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:12:43,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:43,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63089919] [2022-11-21 09:12:43,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63089919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:43,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:43,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:12:43,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870775716] [2022-11-21 09:12:43,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:43,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:12:43,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:43,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:12:43,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:43,027 INFO L87 Difference]: Start difference. First operand 146 states and 182 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 09:12:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:43,330 INFO L93 Difference]: Finished difference Result 404 states and 525 transitions. [2022-11-21 09:12:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:12:43,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 53 [2022-11-21 09:12:43,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:43,335 INFO L225 Difference]: With dead ends: 404 [2022-11-21 09:12:43,335 INFO L226 Difference]: Without dead ends: 266 [2022-11-21 09:12:43,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:43,337 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 191 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:43,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 310 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-21 09:12:43,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 264. [2022-11-21 09:12:43,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 204 states have (on average 1.2352941176470589) internal successors, (252), 216 states have internal predecessors, (252), 30 states have call successors, (30), 28 states have call predecessors, (30), 29 states have return successors, (49), 30 states have call predecessors, (49), 30 states have call successors, (49) [2022-11-21 09:12:43,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 331 transitions. [2022-11-21 09:12:43,389 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 331 transitions. Word has length 53 [2022-11-21 09:12:43,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:43,389 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 331 transitions. [2022-11-21 09:12:43,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 09:12:43,390 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 331 transitions. [2022-11-21 09:12:43,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-21 09:12:43,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:43,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:43,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:12:43,395 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:43,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:43,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1253719722, now seen corresponding path program 1 times [2022-11-21 09:12:43,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:43,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111776533] [2022-11-21 09:12:43,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:43,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:12:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:12:43,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:43,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111776533] [2022-11-21 09:12:43,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111776533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:43,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:43,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 09:12:43,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884445937] [2022-11-21 09:12:43,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:43,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 09:12:43,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:43,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 09:12:43,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-21 09:12:43,783 INFO L87 Difference]: Start difference. First operand 264 states and 331 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-21 09:12:44,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:44,683 INFO L93 Difference]: Finished difference Result 874 states and 1153 transitions. [2022-11-21 09:12:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-21 09:12:44,684 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2022-11-21 09:12:44,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:44,691 INFO L225 Difference]: With dead ends: 874 [2022-11-21 09:12:44,692 INFO L226 Difference]: Without dead ends: 618 [2022-11-21 09:12:44,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2022-11-21 09:12:44,698 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 376 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:44,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 566 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 09:12:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-21 09:12:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 569. [2022-11-21 09:12:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 435 states have (on average 1.2022988505747128) internal successors, (523), 465 states have internal predecessors, (523), 69 states have call successors, (69), 54 states have call predecessors, (69), 64 states have return successors, (132), 71 states have call predecessors, (132), 69 states have call successors, (132) [2022-11-21 09:12:44,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 724 transitions. [2022-11-21 09:12:44,817 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 724 transitions. Word has length 57 [2022-11-21 09:12:44,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:44,819 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 724 transitions. [2022-11-21 09:12:44,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-21 09:12:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 724 transitions. [2022-11-21 09:12:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-21 09:12:44,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:44,825 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:44,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:12:44,826 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:44,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1972813179, now seen corresponding path program 1 times [2022-11-21 09:12:44,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:44,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828803139] [2022-11-21 09:12:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:44,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 09:12:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:12:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:12:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 09:12:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 09:12:45,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:45,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828803139] [2022-11-21 09:12:45,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828803139] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:45,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863536005] [2022-11-21 09:12:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:45,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:45,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:45,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:45,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 09:12:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 09:12:45,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:12:45,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:45,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863536005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:45,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:45,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2022-11-21 09:12:45,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36748083] [2022-11-21 09:12:45,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:45,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:45,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:45,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:45,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:45,441 INFO L87 Difference]: Start difference. First operand 569 states and 724 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 09:12:45,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:45,542 INFO L93 Difference]: Finished difference Result 888 states and 1165 transitions. [2022-11-21 09:12:45,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:45,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2022-11-21 09:12:45,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:45,549 INFO L225 Difference]: With dead ends: 888 [2022-11-21 09:12:45,549 INFO L226 Difference]: Without dead ends: 886 [2022-11-21 09:12:45,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:45,551 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 45 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:45,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 191 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:45,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-11-21 09:12:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 802. [2022-11-21 09:12:45,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 613 states have (on average 1.2185970636215335) internal successors, (747), 658 states have internal predecessors, (747), 100 states have call successors, (100), 76 states have call predecessors, (100), 88 states have return successors, (220), 94 states have call predecessors, (220), 100 states have call successors, (220) [2022-11-21 09:12:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1067 transitions. [2022-11-21 09:12:45,656 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1067 transitions. Word has length 100 [2022-11-21 09:12:45,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:45,656 INFO L495 AbstractCegarLoop]: Abstraction has 802 states and 1067 transitions. [2022-11-21 09:12:45,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 09:12:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1067 transitions. [2022-11-21 09:12:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-21 09:12:45,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:45,664 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:45,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:45,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 09:12:45,871 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash -551426233, now seen corresponding path program 1 times [2022-11-21 09:12:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:45,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571082900] [2022-11-21 09:12:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:45,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 09:12:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:12:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:12:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:12:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:12:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 09:12:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 09:12:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:12:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-21 09:12:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,372 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 43 proven. 21 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-21 09:12:46,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:46,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571082900] [2022-11-21 09:12:46,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571082900] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:46,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609788426] [2022-11-21 09:12:46,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:46,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:46,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:46,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:46,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 09:12:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 09:12:46,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-21 09:12:46,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:47,355 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 55 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-21 09:12:47,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609788426] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:47,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:47,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 18 [2022-11-21 09:12:47,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299209278] [2022-11-21 09:12:47,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:47,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 09:12:47,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:47,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 09:12:47,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-21 09:12:47,359 INFO L87 Difference]: Start difference. First operand 802 states and 1067 transitions. Second operand has 18 states, 18 states have (on average 9.166666666666666) internal successors, (165), 14 states have internal predecessors, (165), 10 states have call successors, (30), 10 states have call predecessors, (30), 12 states have return successors, (29), 9 states have call predecessors, (29), 10 states have call successors, (29) [2022-11-21 09:12:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:48,644 INFO L93 Difference]: Finished difference Result 1540 states and 2140 transitions. [2022-11-21 09:12:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 09:12:48,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.166666666666666) internal successors, (165), 14 states have internal predecessors, (165), 10 states have call successors, (30), 10 states have call predecessors, (30), 12 states have return successors, (29), 9 states have call predecessors, (29), 10 states have call successors, (29) Word has length 146 [2022-11-21 09:12:48,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:48,651 INFO L225 Difference]: With dead ends: 1540 [2022-11-21 09:12:48,651 INFO L226 Difference]: Without dead ends: 842 [2022-11-21 09:12:48,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 309 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=750, Unknown=0, NotChecked=0, Total=1056 [2022-11-21 09:12:48,656 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 928 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:48,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 222 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-21 09:12:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-11-21 09:12:48,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 818. [2022-11-21 09:12:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 627 states have (on average 1.226475279106858) internal successors, (769), 669 states have internal predecessors, (769), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (191), 87 states have call predecessors, (191), 104 states have call successors, (191) [2022-11-21 09:12:48,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1064 transitions. [2022-11-21 09:12:48,752 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1064 transitions. Word has length 146 [2022-11-21 09:12:48,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:48,753 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1064 transitions. [2022-11-21 09:12:48,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.166666666666666) internal successors, (165), 14 states have internal predecessors, (165), 10 states have call successors, (30), 10 states have call predecessors, (30), 12 states have return successors, (29), 9 states have call predecessors, (29), 10 states have call successors, (29) [2022-11-21 09:12:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1064 transitions. [2022-11-21 09:12:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-21 09:12:48,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:48,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:48,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-21 09:12:48,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:48,966 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:48,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:48,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1133837867, now seen corresponding path program 1 times [2022-11-21 09:12:48,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:48,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707705476] [2022-11-21 09:12:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:48,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 09:12:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:12:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:12:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:12:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:12:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 09:12:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:12:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 09:12:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,375 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 59 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 09:12:49,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:49,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707705476] [2022-11-21 09:12:49,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707705476] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:49,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355072837] [2022-11-21 09:12:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:49,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:49,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:49,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 09:12:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:49,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 09:12:49,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 82 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:12:49,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-21 09:12:50,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355072837] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:50,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:50,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 18 [2022-11-21 09:12:50,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988290306] [2022-11-21 09:12:50,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:50,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 09:12:50,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:50,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 09:12:50,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-11-21 09:12:50,161 INFO L87 Difference]: Start difference. First operand 818 states and 1064 transitions. Second operand has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 15 states have internal predecessors, (146), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-21 09:12:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:53,177 INFO L93 Difference]: Finished difference Result 2701 states and 4330 transitions. [2022-11-21 09:12:53,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-21 09:12:53,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 15 states have internal predecessors, (146), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 142 [2022-11-21 09:12:53,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:53,196 INFO L225 Difference]: With dead ends: 2701 [2022-11-21 09:12:53,196 INFO L226 Difference]: Without dead ends: 1987 [2022-11-21 09:12:53,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 308 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2022-11-21 09:12:53,206 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1077 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:53,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 783 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-21 09:12:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-11-21 09:12:53,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1187. [2022-11-21 09:12:53,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 907 states have (on average 1.217199558985667) internal successors, (1104), 963 states have internal predecessors, (1104), 145 states have call successors, (145), 125 states have call predecessors, (145), 134 states have return successors, (289), 133 states have call predecessors, (289), 145 states have call successors, (289) [2022-11-21 09:12:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1538 transitions. [2022-11-21 09:12:53,433 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1538 transitions. Word has length 142 [2022-11-21 09:12:53,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:53,434 INFO L495 AbstractCegarLoop]: Abstraction has 1187 states and 1538 transitions. [2022-11-21 09:12:53,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 15 states have internal predecessors, (146), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-21 09:12:53,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1538 transitions. [2022-11-21 09:12:53,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-21 09:12:53,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:53,442 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:53,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 09:12:53,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:53,649 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:53,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1788073835, now seen corresponding path program 1 times [2022-11-21 09:12:53,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:53,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021933295] [2022-11-21 09:12:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:53,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 09:12:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:12:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 09:12:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:12:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:12:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:12:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:12:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 09:12:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:12:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 09:12:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:53,916 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-21 09:12:53,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:53,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021933295] [2022-11-21 09:12:53,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021933295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:53,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:53,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 09:12:53,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796549281] [2022-11-21 09:12:53,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:53,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 09:12:53,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:53,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 09:12:53,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 09:12:53,919 INFO L87 Difference]: Start difference. First operand 1187 states and 1538 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:12:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:54,626 INFO L93 Difference]: Finished difference Result 1652 states and 2089 transitions. [2022-11-21 09:12:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 09:12:54,627 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 142 [2022-11-21 09:12:54,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:54,629 INFO L225 Difference]: With dead ends: 1652 [2022-11-21 09:12:54,629 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 09:12:54,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-11-21 09:12:54,635 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 252 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:54,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 166 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 09:12:54,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 09:12:54,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 09:12:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:12:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 09:12:54,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2022-11-21 09:12:54,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:54,638 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:12:54,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 09:12:54,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:12:54,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 09:12:54,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 09:12:54,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:12:54,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 09:13:02,315 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 629 635) no Hoare annotation was computed. [2022-11-21 09:13:02,315 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 629 635) the Hoare annotation is: true [2022-11-21 09:13:02,316 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 84 95) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 (not (<= 2 ~waterLevel~0)) .cse1 .cse2 .cse3))) [2022-11-21 09:13:02,316 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 84 95) no Hoare annotation was computed. [2022-11-21 09:13:02,316 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2022-11-21 09:13:02,316 INFO L902 garLoopResultBuilder]: At program point L929(lines 904 933) the Hoare annotation is: true [2022-11-21 09:13:02,316 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 904 933) no Hoare annotation was computed. [2022-11-21 09:13:02,316 INFO L899 garLoopResultBuilder]: For program point L925(line 925) no Hoare annotation was computed. [2022-11-21 09:13:02,316 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 904 933) the Hoare annotation is: true [2022-11-21 09:13:02,316 INFO L899 garLoopResultBuilder]: For program point L918(lines 918 922) no Hoare annotation was computed. [2022-11-21 09:13:02,316 INFO L902 garLoopResultBuilder]: At program point L918-1(lines 918 922) the Hoare annotation is: true [2022-11-21 09:13:02,317 INFO L899 garLoopResultBuilder]: For program point L915(line 915) no Hoare annotation was computed. [2022-11-21 09:13:02,317 INFO L902 garLoopResultBuilder]: At program point L914-2(lines 914 928) the Hoare annotation is: true [2022-11-21 09:13:02,317 INFO L902 garLoopResultBuilder]: At program point L910(line 910) the Hoare annotation is: true [2022-11-21 09:13:02,317 INFO L899 garLoopResultBuilder]: For program point L910-1(line 910) no Hoare annotation was computed. [2022-11-21 09:13:02,317 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2022-11-21 09:13:02,317 INFO L899 garLoopResultBuilder]: For program point L609-1(lines 608 627) no Hoare annotation was computed. [2022-11-21 09:13:02,317 INFO L899 garLoopResultBuilder]: For program point L671(lines 671 679) no Hoare annotation was computed. [2022-11-21 09:13:02,317 INFO L895 garLoopResultBuilder]: At program point L64-2(lines 60 71) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2) (or .cse0 (let ((.cse3 (+ ~waterLevel~0 1))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (<= .cse3 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse3))) .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-21 09:13:02,318 INFO L899 garLoopResultBuilder]: For program point L667(lines 667 684) no Hoare annotation was computed. [2022-11-21 09:13:02,318 INFO L895 garLoopResultBuilder]: At program point L812(lines 797 815) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2) (or .cse0 (let ((.cse3 (+ ~waterLevel~0 1))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~methAndRunningLastTime~0 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= .cse3 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse3) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|))) .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-21 09:13:02,318 INFO L895 garLoopResultBuilder]: At program point L841(line 841) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (and (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0) .cse5)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (or .cse0 (let ((.cse6 (+ ~waterLevel~0 1))) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse4 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= .cse6 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse6) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-21 09:13:02,318 INFO L899 garLoopResultBuilder]: For program point L841-1(line 841) no Hoare annotation was computed. [2022-11-21 09:13:02,318 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 605 628) no Hoare annotation was computed. [2022-11-21 09:13:02,319 INFO L895 garLoopResultBuilder]: At program point L738(lines 733 741) the Hoare annotation is: (let ((.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) .cse2 .cse3 (let ((.cse5 (+ ~waterLevel~0 1))) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse4 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= .cse5 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse5) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|))) .cse6) (or .cse7 .cse0 .cse8 .cse2 .cse3) (or .cse7 .cse0 (and .cse1 .cse4 (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) .cse2 .cse3) (or .cse0 .cse8 .cse2 .cse3 .cse6))) [2022-11-21 09:13:02,319 INFO L895 garLoopResultBuilder]: At program point L156(lines 151 159) the Hoare annotation is: (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or (let ((.cse0 (+ ~waterLevel~0 1))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~methAndRunningLastTime~0 0) (<= .cse0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse0))) .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2 .cse3))) [2022-11-21 09:13:02,319 INFO L895 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-21 09:13:02,320 INFO L895 garLoopResultBuilder]: At program point L719(lines 714 721) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2) (or .cse0 (let ((.cse3 (+ ~waterLevel~0 1))) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= .cse3 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse3) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|))) .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-21 09:13:02,320 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 857) no Hoare annotation was computed. [2022-11-21 09:13:02,320 INFO L899 garLoopResultBuilder]: For program point L1004(line 1004) no Hoare annotation was computed. [2022-11-21 09:13:02,320 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 860) no Hoare annotation was computed. [2022-11-21 09:13:02,320 INFO L895 garLoopResultBuilder]: At program point L682(line 682) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 .cse3) .cse4 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse4 (and .cse1 .cse2 .cse3)))) [2022-11-21 09:13:02,321 INFO L895 garLoopResultBuilder]: At program point L843-1(lines 835 863) the Hoare annotation is: (let ((.cse3 (= 0 ~systemActive~0))) (let ((.cse9 (= ~methAndRunningLastTime~0 0)) (.cse13 (= ~methaneLevelCritical~0 0)) (.cse2 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~9#1| 0)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (not .cse3))) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= ~pumpRunning~0 0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse12 (and .cse9 .cse13 (<= 2 ~waterLevel~0) .cse2 (<= ~waterLevel~0 2) .cse10 .cse11)) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not .cse13))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 (and .cse7 .cse8 .cse9 .cse10 .cse11) .cse3 .cse4 .cse12) (or (and .cse7 .cse8 .cse11) .cse0 (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse8 .cse9 (<= ~waterLevel~0 1) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse3 .cse4 .cse12 .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse6 .cse0 .cse1 .cse2 .cse3))))) [2022-11-21 09:13:02,321 INFO L895 garLoopResultBuilder]: At program point L682-1(lines 663 687) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (and (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0) .cse5)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (or .cse0 (let ((.cse6 (+ ~waterLevel~0 1))) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse4 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= .cse6 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse6) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-21 09:13:02,321 INFO L899 garLoopResultBuilder]: For program point L616-1(lines 616 622) no Hoare annotation was computed. [2022-11-21 09:13:02,321 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 810) no Hoare annotation was computed. [2022-11-21 09:13:02,324 INFO L899 garLoopResultBuilder]: For program point L806-2(lines 806 810) no Hoare annotation was computed. [2022-11-21 09:13:02,331 INFO L899 garLoopResultBuilder]: For program point L848(lines 848 854) no Hoare annotation was computed. [2022-11-21 09:13:02,332 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 605 628) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= 0 ~systemActive~0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) .cse3 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse3 (and (= ~pumpRunning~0 0) .cse1 .cse2)))) [2022-11-21 09:13:02,332 INFO L895 garLoopResultBuilder]: At program point L1005(lines 1000 1007) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-21 09:13:02,332 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 605 628) no Hoare annotation was computed. [2022-11-21 09:13:02,332 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1004) no Hoare annotation was computed. [2022-11-21 09:13:02,332 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 96 104) the Hoare annotation is: true [2022-11-21 09:13:02,337 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 96 104) no Hoare annotation was computed. [2022-11-21 09:13:02,337 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 96 104) no Hoare annotation was computed. [2022-11-21 09:13:02,338 INFO L895 garLoopResultBuilder]: At program point L832(lines 827 834) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-11-21 09:13:02,338 INFO L895 garLoopResultBuilder]: At program point L890(lines 886 892) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-21 09:13:02,338 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 566) no Hoare annotation was computed. [2022-11-21 09:13:02,338 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 560 566) no Hoare annotation was computed. [2022-11-21 09:13:02,339 INFO L902 garLoopResultBuilder]: At program point L973(lines 965 975) the Hoare annotation is: true [2022-11-21 09:13:02,339 INFO L895 garLoopResultBuilder]: At program point L585(lines 540 587) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse5) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-21 09:13:02,339 INFO L895 garLoopResultBuilder]: At program point L552(line 552) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse5) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-21 09:13:02,339 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 09:13:02,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 09:13:02,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 09:13:02,340 INFO L899 garLoopResultBuilder]: For program point L986(lines 986 993) no Hoare annotation was computed. [2022-11-21 09:13:02,340 INFO L899 garLoopResultBuilder]: For program point L986-2(lines 986 993) no Hoare annotation was computed. [2022-11-21 09:13:02,340 INFO L895 garLoopResultBuilder]: At program point L821(lines 816 823) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse5))) [2022-11-21 09:13:02,341 INFO L895 garLoopResultBuilder]: At program point L883(lines 879 885) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-21 09:13:02,341 INFO L902 garLoopResultBuilder]: At program point L995(lines 976 998) the Hoare annotation is: true [2022-11-21 09:13:02,342 INFO L895 garLoopResultBuilder]: At program point L962(lines 958 964) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-11-21 09:13:02,342 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 582) no Hoare annotation was computed. [2022-11-21 09:13:02,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 09:13:02,344 INFO L895 garLoopResultBuilder]: At program point L578-2(lines 570 583) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse5))) [2022-11-21 09:13:02,344 INFO L899 garLoopResultBuilder]: For program point L541(lines 540 587) no Hoare annotation was computed. [2022-11-21 09:13:02,344 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 583) no Hoare annotation was computed. [2022-11-21 09:13:02,346 INFO L895 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse5) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-21 09:13:02,346 INFO L902 garLoopResultBuilder]: At program point L591(lines 530 595) the Hoare annotation is: true [2022-11-21 09:13:02,346 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 556) no Hoare annotation was computed. [2022-11-21 09:13:02,346 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 550 556) no Hoare annotation was computed. [2022-11-21 09:13:02,347 INFO L899 garLoopResultBuilder]: For program point L542(lines 542 546) no Hoare annotation was computed. [2022-11-21 09:13:02,348 INFO L895 garLoopResultBuilder]: At program point L588(lines 539 589) the Hoare annotation is: false [2022-11-21 09:13:02,348 INFO L895 garLoopResultBuilder]: At program point L898(lines 893 901) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-21 09:13:02,348 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 637 661) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse2 .cse3))) [2022-11-21 09:13:02,349 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 710) no Hoare annotation was computed. [2022-11-21 09:13:02,351 INFO L895 garLoopResultBuilder]: At program point L704-2(lines 697 713) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not .cse1) .cse2) (or .cse0 .cse2 .cse3) (let ((.cse4 (<= 2 ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse1 .cse4) (not (<= ~waterLevel~0 2)) .cse2 (and (= ~pumpRunning~0 0) .cse4 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~6#1|) (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0)) .cse3)))) [2022-11-21 09:13:02,351 INFO L895 garLoopResultBuilder]: At program point L793(lines 778 796) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (not .cse6))) (let ((.cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (.cse5 (not (= ~waterLevel~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (and .cse0 .cse1 .cse4)) (.cse8 (not (= ~methAndRunningLastTime~0 0)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 (not (= ~methaneLevelCritical~0 0)) .cse6) (or .cse7 (not (<= ~waterLevel~0 1)) .cse6 .cse8 (and .cse2 .cse3)) (or .cse9 .cse5 .cse6 .cse8) (or .cse7 .cse9 (not (<= ~waterLevel~0 2)) .cse6 .cse8))))) [2022-11-21 09:13:02,352 INFO L895 garLoopResultBuilder]: At program point L729(lines 722 732) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (or .cse1 (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0))) .cse2 .cse3) (or .cse0 .cse2 .cse3))) [2022-11-21 09:13:02,352 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)) .cse1 .cse2) (or .cse0 .cse1 .cse2))) [2022-11-21 09:13:02,353 INFO L899 garLoopResultBuilder]: For program point L727-1(line 727) no Hoare annotation was computed. [2022-11-21 09:13:02,353 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2022-11-21 09:13:02,353 INFO L899 garLoopResultBuilder]: For program point L787-2(lines 787 791) no Hoare annotation was computed. [2022-11-21 09:13:02,353 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2022-11-21 09:13:02,353 INFO L895 garLoopResultBuilder]: At program point L651(line 651) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0) (not .cse2))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (<= ~waterLevel~0 2)) .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3)))) [2022-11-21 09:13:02,354 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 653) no Hoare annotation was computed. [2022-11-21 09:13:02,354 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 658) no Hoare annotation was computed. [2022-11-21 09:13:02,354 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 637 661) no Hoare annotation was computed. [2022-11-21 09:13:02,354 INFO L895 garLoopResultBuilder]: At program point L693(lines 688 695) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse1 (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2)) .cse2 .cse3) (or .cse0 .cse2 .cse3))) [2022-11-21 09:13:02,355 INFO L895 garLoopResultBuilder]: At program point L146(lines 137 150) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~systemActive~0)) (.cse5 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (and .cse1 .cse2 .cse3) (not (= ~methaneLevelCritical~0 0)) .cse4) (or .cse0 (and .cse1 .cse2) .cse4 .cse5) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse2 .cse3) (not (<= ~waterLevel~0 2)) (and .cse2 (<= 2 ~waterLevel~0)) .cse4 .cse5))) [2022-11-21 09:13:02,355 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (let ((.cse1 (not (= ~methAndRunningLastTime~0 0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= ~waterLevel~0 0))) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) .cse0 .cse1) (or .cse2 .cse3 .cse0 .cse1) (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-11-21 09:13:02,355 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 637 661) no Hoare annotation was computed. [2022-11-21 09:13:02,355 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2022-11-21 09:13:02,355 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 72 83) no Hoare annotation was computed. [2022-11-21 09:13:02,356 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 72 83) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2 .cse3))) [2022-11-21 09:13:02,360 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:02,363 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:13:02,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:13:02 BoogieIcfgContainer [2022-11-21 09:13:02,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:13:02,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:13:02,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:13:02,429 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:13:02,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:40" (3/4) ... [2022-11-21 09:13:02,433 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:13:02,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-21 09:13:02,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-21 09:13:02,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-21 09:13:02,444 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-21 09:13:02,444 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-21 09:13:02,444 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-21 09:13:02,444 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-21 09:13:02,458 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-21 09:13:02,459 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 09:13:02,459 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 09:13:02,460 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:13:02,460 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:13:02,492 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-11-21 09:13:02,493 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) [2022-11-21 09:13:02,493 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) [2022-11-21 09:13:02,494 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) [2022-11-21 09:13:02,495 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-21 09:13:02,497 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) && ((((((!(\old(methAndRunningLastTime) == 0) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-21 09:13:02,499 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) || ((((((methAndRunningLastTime == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) [2022-11-21 09:13:02,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 2 <= waterLevel) && tmp == 0) && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || !(\old(methAndRunningLastTime) == 0)) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && waterLevel <= 1) && tmp == 0) && 1 <= \result) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 2 <= waterLevel) && tmp == 0) && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel)))) && (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) [2022-11-21 09:13:02,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || !(waterLevel <= 2)) || ((pumpRunning == 0 && 2 <= waterLevel) && (methaneLevelCritical == 0 || \result == methaneLevelCritical))) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-21 09:13:02,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(methAndRunningLastTime) == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && \result == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-21 09:13:02,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) [2022-11-21 09:13:02,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && (((((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || !(waterLevel <= 2)) || 0 == systemActive) || (((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp) && \result == methaneLevelCritical)) || !(methAndRunningLastTime == 0)) [2022-11-21 09:13:02,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 1)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(waterLevel == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 1)) || !(waterLevel <= 2)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-21 09:13:02,502 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || !(waterLevel <= 2)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-21 09:13:02,502 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((!(\old(methAndRunningLastTime) == 0) || (((((((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-21 09:13:02,502 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-21 09:13:02,503 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || !(waterLevel <= 1)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) || (tmp___0 == 0 && \result == 0))) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive))) || !(waterLevel <= 2)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-21 09:13:02,503 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((!(\old(methAndRunningLastTime) == 0) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-21 09:13:02,564 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:13:02,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:13:02,565 INFO L158 Benchmark]: Toolchain (without parser) took 23817.60ms. Allocated memory was 130.0MB in the beginning and 360.7MB in the end (delta: 230.7MB). Free memory was 65.8MB in the beginning and 262.9MB in the end (delta: -197.2MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-11-21 09:13:02,565 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory was 99.3MB in the beginning and 99.2MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:13:02,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.59ms. Allocated memory was 130.0MB in the beginning and 205.5MB in the end (delta: 75.5MB). Free memory was 65.5MB in the beginning and 160.2MB in the end (delta: -94.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-11-21 09:13:02,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.91ms. Allocated memory is still 205.5MB. Free memory was 160.2MB in the beginning and 158.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:02,567 INFO L158 Benchmark]: Boogie Preprocessor took 29.45ms. Allocated memory is still 205.5MB. Free memory was 158.1MB in the beginning and 156.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:02,568 INFO L158 Benchmark]: RCFGBuilder took 624.93ms. Allocated memory is still 205.5MB. Free memory was 156.0MB in the beginning and 139.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 09:13:02,569 INFO L158 Benchmark]: TraceAbstraction took 22326.73ms. Allocated memory was 205.5MB in the beginning and 360.7MB in the end (delta: 155.2MB). Free memory was 138.5MB in the beginning and 269.2MB in the end (delta: -130.7MB). Peak memory consumption was 177.6MB. Max. memory is 16.1GB. [2022-11-21 09:13:02,569 INFO L158 Benchmark]: Witness Printer took 135.85ms. Allocated memory is still 360.7MB. Free memory was 269.2MB in the beginning and 262.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 09:13:02,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory was 99.3MB in the beginning and 99.2MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.59ms. Allocated memory was 130.0MB in the beginning and 205.5MB in the end (delta: 75.5MB). Free memory was 65.5MB in the beginning and 160.2MB in the end (delta: -94.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.91ms. Allocated memory is still 205.5MB. Free memory was 160.2MB in the beginning and 158.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.45ms. Allocated memory is still 205.5MB. Free memory was 158.1MB in the beginning and 156.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.93ms. Allocated memory is still 205.5MB. Free memory was 156.0MB in the beginning and 139.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22326.73ms. Allocated memory was 205.5MB in the beginning and 360.7MB in the end (delta: 155.2MB). Free memory was 138.5MB in the beginning and 269.2MB in the end (delta: -130.7MB). Peak memory consumption was 177.6MB. Max. memory is 16.1GB. * Witness Printer took 135.85ms. Allocated memory is still 360.7MB. Free memory was 269.2MB in the beginning and 262.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1004]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.2s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3380 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3341 mSDsluCounter, 4003 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2835 mSDsCounter, 1150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4550 IncrementalHoareTripleChecker+Invalid, 5700 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1150 mSolverCounterUnsat, 1168 mSDtfsCounter, 4550 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1005 GetRequests, 829 SyntacticMatches, 12 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1187occurred in iteration=12, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 999 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 2238 PreInvPairs, 2515 NumberOfFragments, 1916 HoareAnnotationTreeSize, 2238 FomulaSimplifications, 799 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 44 FomulaSimplificationsInter, 28120 FormulaSimplificationTreeSizeReductionInter, 6.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 1296 NumberOfCodeBlocks, 1296 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1566 ConstructedInterpolants, 0 QuantifiedInterpolants, 3334 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1274 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 720/790 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 976]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || !(waterLevel <= 2)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 663]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) && ((((((!(\old(methAndRunningLastTime) == 0) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && (((((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || !(waterLevel <= 2)) || 0 == systemActive) || (((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp) && \result == methaneLevelCritical)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: (((((((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 2 <= waterLevel) && tmp == 0) && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || !(\old(methAndRunningLastTime) == 0)) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && waterLevel <= 1) && tmp == 0) && 1 <= \result) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 2 <= waterLevel) && tmp == 0) && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel)))) && (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) - InvariantResult [Line: 1000]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 733]: Loop Invariant Derived loop invariant: (((((((!(\old(methAndRunningLastTime) == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && \result == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 914]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 904]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((!(\old(methAndRunningLastTime) == 0) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 722]: Loop Invariant Derived loop invariant: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || !(waterLevel <= 2)) || ((pumpRunning == 0 && 2 <= waterLevel) && (methaneLevelCritical == 0 || \result == methaneLevelCritical))) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 797]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((!(\old(methAndRunningLastTime) == 0) || (((((((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= \result) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) || ((((((methAndRunningLastTime == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && waterLevel + 1 <= \old(waterLevel)) && \old(waterLevel) <= waterLevel + 1) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((!(waterLevel == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 1)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(waterLevel == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 1)) || !(waterLevel <= 2)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 778]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || !(waterLevel <= 1)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) || (tmp___0 == 0 && \result == 0))) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive))) || !(waterLevel <= 2)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-21 09:13:02,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76466c8e-95b2-496c-9d25-4538bd35b4b6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE