./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN --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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- 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-6b4ec56 [2022-11-20 12:44:11,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:44:11,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:44:11,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:44:11,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:44:11,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:44:11,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:44:11,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:44:11,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:44:11,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:44:11,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:44:11,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:44:11,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:44:11,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:44:11,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:44:11,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:44:11,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:44:11,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:44:11,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:44:11,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:44:11,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:44:11,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:44:11,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:44:11,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:44:11,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:44:11,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:44:11,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:44:11,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:44:11,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:44:11,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:44:11,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:44:11,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:44:11,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:44:11,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:44:11,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:44:11,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:44:11,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:44:11,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:44:11,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:44:11,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:44:11,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:44:11,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:44:11,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:44:11,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:44:11,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:44:11,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:44:11,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:44:11,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:44:11,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:44:11,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:44:11,823 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:44:11,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:44:11,824 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:44:11,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:44:11,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:44:11,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:44:11,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:44:11,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:44:11,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:44:11,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:44:11,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:44:11,827 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:44:11,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:44:11,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:44:11,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:44:11,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:44:11,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:44:11,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:44:11,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:44:11,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:44:11,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:44:11,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:44:11,830 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:44:11,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:44:11,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:44:11,831 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_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2022-11-20 12:44:12,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:44:12,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:44:12,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:44:12,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:44:12,176 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:44:12,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-11-20 12:44:15,392 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:44:15,703 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:44:15,704 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-11-20 12:44:15,732 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/data/c6b87f000/7b555dc5a3b14495ab2d238da48fb834/FLAG035bf6db1 [2022-11-20 12:44:15,751 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/data/c6b87f000/7b555dc5a3b14495ab2d238da48fb834 [2022-11-20 12:44:15,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:44:15,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:44:15,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:44:15,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:44:15,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:44:15,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:44:15" (1/1) ... [2022-11-20 12:44:15,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333b4d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:15, skipping insertion in model container [2022-11-20 12:44:15,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:44:15" (1/1) ... [2022-11-20 12:44:15,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:44:15,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:44:16,000 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_a9479d09-b7e9-4a25-896a-57b162ab8d88/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2022-11-20 12:44:16,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:44:16,180 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:44:16,221 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_a9479d09-b7e9-4a25-896a-57b162ab8d88/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2022-11-20 12:44:16,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:44:16,313 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:44:16,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16 WrapperNode [2022-11-20 12:44:16,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:44:16,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:44:16,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:44:16,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:44:16,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,393 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 212 [2022-11-20 12:44:16,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:44:16,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:44:16,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:44:16,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:44:16,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:44:16,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:44:16,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:44:16,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:44:16,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (1/1) ... [2022-11-20 12:44:16,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:44:16,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:44:16,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:44:16,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:44:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:44:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 12:44:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 12:44:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 12:44:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 12:44:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 12:44:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 12:44:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 12:44:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 12:44:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 12:44:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 12:44:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 12:44:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 12:44:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-20 12:44:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-20 12:44:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-20 12:44:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-20 12:44:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-20 12:44:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-20 12:44:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:44:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 12:44:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 12:44:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:44:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:44:16,658 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:44:16,661 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:44:17,146 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:44:17,154 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:44:17,166 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:44:17,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:44:17 BoogieIcfgContainer [2022-11-20 12:44:17,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:44:17,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:44:17,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:44:17,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:44:17,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:44:15" (1/3) ... [2022-11-20 12:44:17,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8cfecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:44:17, skipping insertion in model container [2022-11-20 12:44:17,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:44:16" (2/3) ... [2022-11-20 12:44:17,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8cfecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:44:17, skipping insertion in model container [2022-11-20 12:44:17,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:44:17" (3/3) ... [2022-11-20 12:44:17,211 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2022-11-20 12:44:17,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:44:17,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:44:17,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:44:17,370 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;@77515a75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:44:17,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:44:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-20 12:44:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 12:44:17,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:17,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:17,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:17,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:17,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1854857434, now seen corresponding path program 1 times [2022-11-20 12:44:17,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:17,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028272720] [2022-11-20 12:44:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:17,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:44:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:44:17,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:17,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028272720] [2022-11-20 12:44:17,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028272720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:17,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:17,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:44:17,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143060353] [2022-11-20 12:44:17,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:17,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:44:17,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:17,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:44:17,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:44:17,700 INFO L87 Difference]: Start difference. First operand has 108 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:44:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:17,769 INFO L93 Difference]: Finished difference Result 208 states and 281 transitions. [2022-11-20 12:44:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:44:17,773 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-20 12:44:17,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:17,784 INFO L225 Difference]: With dead ends: 208 [2022-11-20 12:44:17,784 INFO L226 Difference]: Without dead ends: 99 [2022-11-20 12:44:17,788 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 [2022-11-20 12:44:17,792 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:17,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:44:17,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-20 12:44:17,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-11-20 12:44:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-20 12:44:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2022-11-20 12:44:17,846 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 23 [2022-11-20 12:44:17,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:17,847 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2022-11-20 12:44:17,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:44:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2022-11-20 12:44:17,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 12:44:17,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:17,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:17,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:44:17,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:17,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1310134844, now seen corresponding path program 1 times [2022-11-20 12:44:17,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:17,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339708378] [2022-11-20 12:44:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:17,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 12:44:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:44:17,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:17,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339708378] [2022-11-20 12:44:17,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339708378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:17,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:17,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:44:17,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021043152] [2022-11-20 12:44:17,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:17,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:44:17,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:17,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:44:17,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:44:17,968 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:44:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:18,009 INFO L93 Difference]: Finished difference Result 164 states and 212 transitions. [2022-11-20 12:44:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:44:18,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-20 12:44:18,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:18,012 INFO L225 Difference]: With dead ends: 164 [2022-11-20 12:44:18,012 INFO L226 Difference]: Without dead ends: 90 [2022-11-20 12:44:18,013 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 [2022-11-20 12:44:18,015 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 12 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 214 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 [2022-11-20 12:44:18,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:44:18,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-20 12:44:18,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-20 12:44:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-20 12:44:18,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2022-11-20 12:44:18,029 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 24 [2022-11-20 12:44:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:18,030 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2022-11-20 12:44:18,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:44:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2022-11-20 12:44:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 12:44:18,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:18,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:18,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:44:18,033 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:18,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2011182624, now seen corresponding path program 1 times [2022-11-20 12:44:18,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:18,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574141489] [2022-11-20 12:44:18,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:18,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:18,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:44:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:18,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:44:18,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:18,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574141489] [2022-11-20 12:44:18,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574141489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:18,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:18,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:44:18,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300245429] [2022-11-20 12:44:18,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:18,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:44:18,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:18,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:44:18,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:44:18,165 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-11-20 12:44:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:18,191 INFO L93 Difference]: Finished difference Result 173 states and 226 transitions. [2022-11-20 12:44:18,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:44:18,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 28 [2022-11-20 12:44:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:18,194 INFO L225 Difference]: With dead ends: 173 [2022-11-20 12:44:18,194 INFO L226 Difference]: Without dead ends: 90 [2022-11-20 12:44:18,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:44:18,196 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 98 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 114 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 [2022-11-20 12:44:18,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:44:18,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-20 12:44:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-20 12:44:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-20 12:44:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2022-11-20 12:44:18,215 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 115 transitions. Word has length 28 [2022-11-20 12:44:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:18,215 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 115 transitions. [2022-11-20 12:44:18,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-11-20 12:44:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2022-11-20 12:44:18,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 12:44:18,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:18,218 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] [2022-11-20 12:44:18,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:44:18,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:18,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:18,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1454995953, now seen corresponding path program 1 times [2022-11-20 12:44:18,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:18,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024224244] [2022-11-20 12:44:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:18,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:18,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:44:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:44:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:44:18,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:18,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024224244] [2022-11-20 12:44:18,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024224244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:18,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:18,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:44:18,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638319860] [2022-11-20 12:44:18,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:18,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:44:18,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:18,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:44:18,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:44:18,400 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 12:44:18,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:18,825 INFO L93 Difference]: Finished difference Result 258 states and 327 transitions. [2022-11-20 12:44:18,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:44:18,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2022-11-20 12:44:18,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:18,834 INFO L225 Difference]: With dead ends: 258 [2022-11-20 12:44:18,834 INFO L226 Difference]: Without dead ends: 175 [2022-11-20 12:44:18,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:44:18,837 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 213 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:18,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 292 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:44:18,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-20 12:44:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2022-11-20 12:44:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2357723577235773) internal successors, (152), 132 states have internal predecessors, (152), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-20 12:44:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-11-20 12:44:18,898 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 43 [2022-11-20 12:44:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:18,899 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-11-20 12:44:18,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 12:44:18,900 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-11-20 12:44:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 12:44:18,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:18,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:18,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:44:18,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:18,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:18,903 INFO L85 PathProgramCache]: Analyzing trace with hash 541296903, now seen corresponding path program 1 times [2022-11-20 12:44:18,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:18,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529671513] [2022-11-20 12:44:18,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:18,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:44:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:44:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:44:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:44:19,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:19,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529671513] [2022-11-20 12:44:19,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529671513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:19,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:19,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:44:19,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292415020] [2022-11-20 12:44:19,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:19,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:44:19,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:19,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:44:19,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:44:19,071 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 12:44:19,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:19,413 INFO L93 Difference]: Finished difference Result 185 states and 219 transitions. [2022-11-20 12:44:19,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:44:19,414 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-11-20 12:44:19,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:19,417 INFO L225 Difference]: With dead ends: 185 [2022-11-20 12:44:19,418 INFO L226 Difference]: Without dead ends: 183 [2022-11-20 12:44:19,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:44:19,428 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 150 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:19,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 421 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:44:19,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-20 12:44:19,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-11-20 12:44:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 132 states have internal predecessors, (150), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-20 12:44:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2022-11-20 12:44:19,480 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 49 [2022-11-20 12:44:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:19,480 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2022-11-20 12:44:19,481 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 12:44:19,481 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2022-11-20 12:44:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 12:44:19,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:19,483 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, 1, 1] [2022-11-20 12:44:19,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:44:19,483 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:19,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash -543497229, now seen corresponding path program 1 times [2022-11-20 12:44:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:19,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849051156] [2022-11-20 12:44:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:19,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:44:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:44:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:44:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:44:19,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:19,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849051156] [2022-11-20 12:44:19,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849051156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:19,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:19,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:44:19,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219513110] [2022-11-20 12:44:19,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:19,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:44:19,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:19,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:44:19,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:44:19,715 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:44:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:19,964 INFO L93 Difference]: Finished difference Result 341 states and 414 transitions. [2022-11-20 12:44:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:44:19,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-11-20 12:44:19,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:19,966 INFO L225 Difference]: With dead ends: 341 [2022-11-20 12:44:19,966 INFO L226 Difference]: Without dead ends: 179 [2022-11-20 12:44:19,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:44:19,968 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 77 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:19,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 389 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:44:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-20 12:44:20,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 172. [2022-11-20 12:44:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 135 states have internal predecessors, (153), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-20 12:44:20,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2022-11-20 12:44:20,006 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 59 [2022-11-20 12:44:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:20,006 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2022-11-20 12:44:20,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:44:20,007 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2022-11-20 12:44:20,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 12:44:20,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:20,010 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, 1, 1] [2022-11-20 12:44:20,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:44:20,010 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:20,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:20,011 INFO L85 PathProgramCache]: Analyzing trace with hash -268737615, now seen corresponding path program 1 times [2022-11-20 12:44:20,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:20,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702422790] [2022-11-20 12:44:20,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:20,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:44:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:44:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:44:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:44:20,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:20,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702422790] [2022-11-20 12:44:20,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702422790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:20,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:20,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:44:20,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866450614] [2022-11-20 12:44:20,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:20,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:44:20,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:20,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:44:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:44:20,169 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:44:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:20,440 INFO L93 Difference]: Finished difference Result 350 states and 424 transitions. [2022-11-20 12:44:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:44:20,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-11-20 12:44:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:20,445 INFO L225 Difference]: With dead ends: 350 [2022-11-20 12:44:20,445 INFO L226 Difference]: Without dead ends: 185 [2022-11-20 12:44:20,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:44:20,447 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 177 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:20,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 295 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:44:20,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-20 12:44:20,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 174. [2022-11-20 12:44:20,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2109375) internal successors, (155), 137 states have internal predecessors, (155), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-20 12:44:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2022-11-20 12:44:20,478 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 59 [2022-11-20 12:44:20,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:20,479 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2022-11-20 12:44:20,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:44:20,479 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2022-11-20 12:44:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 12:44:20,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:20,481 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, 1, 1] [2022-11-20 12:44:20,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:44:20,481 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:20,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1782246383, now seen corresponding path program 1 times [2022-11-20 12:44:20,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:20,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529134524] [2022-11-20 12:44:20,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:44:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:44:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:44:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:44:20,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:20,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529134524] [2022-11-20 12:44:20,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529134524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:20,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:20,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:44:20,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124716866] [2022-11-20 12:44:20,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:20,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:44:20,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:20,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:44:20,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:44:20,646 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:44:20,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:20,954 INFO L93 Difference]: Finished difference Result 465 states and 581 transitions. [2022-11-20 12:44:20,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:44:20,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2022-11-20 12:44:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:20,960 INFO L225 Difference]: With dead ends: 465 [2022-11-20 12:44:20,960 INFO L226 Difference]: Without dead ends: 298 [2022-11-20 12:44:20,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:44:20,967 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 220 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:20,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 320 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:44:20,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-11-20 12:44:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2022-11-20 12:44:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 218 states have (on average 1.2064220183486238) internal successors, (263), 231 states have internal predecessors, (263), 39 states have call successors, (39), 35 states have call predecessors, (39), 38 states have return successors, (58), 40 states have call predecessors, (58), 39 states have call successors, (58) [2022-11-20 12:44:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 360 transitions. [2022-11-20 12:44:21,026 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 360 transitions. Word has length 59 [2022-11-20 12:44:21,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:21,026 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 360 transitions. [2022-11-20 12:44:21,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:44:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 360 transitions. [2022-11-20 12:44:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 12:44:21,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:21,032 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, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:21,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:44:21,032 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:21,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:21,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1601702199, now seen corresponding path program 1 times [2022-11-20 12:44:21,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:21,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328674561] [2022-11-20 12:44:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:21,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:44:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:44:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:21,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:21,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:44:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:44:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:44:21,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:21,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328674561] [2022-11-20 12:44:21,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328674561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:21,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:21,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:44:21,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942070483] [2022-11-20 12:44:21,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:21,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:44:21,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:21,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:44:21,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:44:21,346 INFO L87 Difference]: Start difference. First operand 296 states and 360 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:44:22,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:22,463 INFO L93 Difference]: Finished difference Result 916 states and 1158 transitions. [2022-11-20 12:44:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 12:44:22,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2022-11-20 12:44:22,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:22,471 INFO L225 Difference]: With dead ends: 916 [2022-11-20 12:44:22,472 INFO L226 Difference]: Without dead ends: 627 [2022-11-20 12:44:22,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 12:44:22,476 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 562 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:22,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 442 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 12:44:22,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-11-20 12:44:22,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 602. [2022-11-20 12:44:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 437 states have (on average 1.1807780320366132) internal successors, (516), 467 states have internal predecessors, (516), 86 states have call successors, (86), 68 states have call predecessors, (86), 78 states have return successors, (135), 86 states have call predecessors, (135), 86 states have call successors, (135) [2022-11-20 12:44:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 737 transitions. [2022-11-20 12:44:22,583 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 737 transitions. Word has length 63 [2022-11-20 12:44:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:22,584 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 737 transitions. [2022-11-20 12:44:22,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:44:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 737 transitions. [2022-11-20 12:44:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 12:44:22,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:22,589 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:22,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:44:22,591 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:22,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:22,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1570194048, now seen corresponding path program 1 times [2022-11-20 12:44:22,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:22,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768598802] [2022-11-20 12:44:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:22,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:44:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:44:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:44:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:44:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:44:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:44:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 12:44:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:22,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:44:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 12:44:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 12:44:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:44:23,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:23,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768598802] [2022-11-20 12:44:23,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768598802] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:44:23,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930284648] [2022-11-20 12:44:23,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:23,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:44:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:44:23,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:44:23,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:44:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:23,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:44:23,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:44:23,483 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 12:44:23,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:44:23,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930284648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:23,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:44:23,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2022-11-20 12:44:23,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19830151] [2022-11-20 12:44:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:23,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:44:23,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:23,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:44:23,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:44:23,485 INFO L87 Difference]: Start difference. First operand 602 states and 737 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:44:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:23,694 INFO L93 Difference]: Finished difference Result 1302 states and 1594 transitions. [2022-11-20 12:44:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:44:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-11-20 12:44:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:23,696 INFO L225 Difference]: With dead ends: 1302 [2022-11-20 12:44:23,696 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:44:23,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:44:23,700 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 78 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:23,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 893 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:44:23,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:44:23,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:44:23,701 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) [2022-11-20 12:44:23,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:44:23,702 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2022-11-20 12:44:23,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:23,702 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:44:23,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:44:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:44:23,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:44:23,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:44:23,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:44:23,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:44:23,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:44:27,639 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 473 480) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2022-11-20 12:44:27,639 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 473 480) no Hoare annotation was computed. [2022-11-20 12:44:27,639 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 473 480) no Hoare annotation was computed. [2022-11-20 12:44:27,639 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 363 369) no Hoare annotation was computed. [2022-11-20 12:44:27,640 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 363 369) the Hoare annotation is: true [2022-11-20 12:44:27,640 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-20 12:44:27,640 INFO L895 garLoopResultBuilder]: At program point L407(line 407) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-20 12:44:27,640 INFO L899 garLoopResultBuilder]: For program point L405(lines 405 413) no Hoare annotation was computed. [2022-11-20 12:44:27,640 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 418) no Hoare annotation was computed. [2022-11-20 12:44:27,640 INFO L895 garLoopResultBuilder]: At program point L416(line 416) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse3 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse3 .cse0 .cse2))) [2022-11-20 12:44:27,640 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 397 421) no Hoare annotation was computed. [2022-11-20 12:44:27,641 INFO L895 garLoopResultBuilder]: At program point L571(lines 556 574) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-20 12:44:27,641 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 569) no Hoare annotation was computed. [2022-11-20 12:44:27,641 INFO L899 garLoopResultBuilder]: For program point L565-2(lines 565 569) no Hoare annotation was computed. [2022-11-20 12:44:27,641 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 397 421) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-20 12:44:27,641 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 397 421) no Hoare annotation was computed. [2022-11-20 12:44:27,641 INFO L895 garLoopResultBuilder]: At program point L194(lines 189 197) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-20 12:44:27,641 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 122 133) no Hoare annotation was computed. [2022-11-20 12:44:27,641 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 122 133) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0) (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2022-11-20 12:44:27,642 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 122 133) no Hoare annotation was computed. [2022-11-20 12:44:27,642 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 227) no Hoare annotation was computed. [2022-11-20 12:44:27,642 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 230) no Hoare annotation was computed. [2022-11-20 12:44:27,642 INFO L895 garLoopResultBuilder]: At program point L217-1(lines 209 233) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse2 (not .cse6)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) .cse2 (and .cse3 .cse4 .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and .cse3 .cse5 .cse0) (and .cse5 .cse4 .cse0 .cse6))) (or .cse2 (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) .cse5 .cse4 .cse6) (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse4 .cse1))))) [2022-11-20 12:44:27,642 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 339 362) no Hoare annotation was computed. [2022-11-20 12:44:27,642 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2022-11-20 12:44:27,642 INFO L895 garLoopResultBuilder]: At program point L102-2(lines 98 109) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse3)) (or .cse3 .cse1 .cse2))) [2022-11-20 12:44:27,642 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2022-11-20 12:44:27,643 INFO L895 garLoopResultBuilder]: At program point L437(line 437) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-20 12:44:27,643 INFO L895 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 (<= 1 |timeShift_processEnvironment_~tmp~4#1|) .cse3)) (or .cse3 .cse1 .cse2))) [2022-11-20 12:44:27,643 INFO L895 garLoopResultBuilder]: At program point L429(line 429) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse3)) (or .cse3 .cse1 .cse2))) [2022-11-20 12:44:27,643 INFO L899 garLoopResultBuilder]: For program point L429-1(line 429) no Hoare annotation was computed. [2022-11-20 12:44:27,643 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-20 12:44:27,644 INFO L895 garLoopResultBuilder]: At program point L442-1(lines 423 447) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) .cse0 .cse1) .cse2 (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse1 .cse4)) (or (and .cse1 .cse4) .cse2 (and .cse3 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse4)))) [2022-11-20 12:44:27,644 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) .cse0 .cse1) .cse2 (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse1 .cse4)) (or (and .cse1 .cse4) .cse2 (and .cse3 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse4)))) [2022-11-20 12:44:27,644 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 342 361) no Hoare annotation was computed. [2022-11-20 12:44:27,644 INFO L899 garLoopResultBuilder]: For program point L215-1(line 215) no Hoare annotation was computed. [2022-11-20 12:44:27,644 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-11-20 12:44:27,644 INFO L895 garLoopResultBuilder]: At program point L497(lines 492 500) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_isPumpRunning_#res#1| 0))) (or .cse0 (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2) (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-20 12:44:27,645 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 339 362) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-20 12:44:27,645 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 439) no Hoare annotation was computed. [2022-11-20 12:44:27,645 INFO L895 garLoopResultBuilder]: At program point L204(lines 199 206) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-20 12:44:27,645 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 444) no Hoare annotation was computed. [2022-11-20 12:44:27,645 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 339 362) no Hoare annotation was computed. [2022-11-20 12:44:27,645 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2022-11-20 12:44:27,645 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 237 266) no Hoare annotation was computed. [2022-11-20 12:44:27,645 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 237 266) the Hoare annotation is: true [2022-11-20 12:44:27,645 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 255) no Hoare annotation was computed. [2022-11-20 12:44:27,646 INFO L902 garLoopResultBuilder]: At program point L251-1(lines 251 255) the Hoare annotation is: true [2022-11-20 12:44:27,646 INFO L899 garLoopResultBuilder]: For program point L248(line 248) no Hoare annotation was computed. [2022-11-20 12:44:27,646 INFO L902 garLoopResultBuilder]: At program point L247-2(lines 247 261) the Hoare annotation is: true [2022-11-20 12:44:27,646 INFO L902 garLoopResultBuilder]: At program point L243(line 243) the Hoare annotation is: true [2022-11-20 12:44:27,646 INFO L899 garLoopResultBuilder]: For program point L243-1(line 243) no Hoare annotation was computed. [2022-11-20 12:44:27,646 INFO L902 garLoopResultBuilder]: At program point L262(lines 237 266) the Hoare annotation is: true [2022-11-20 12:44:27,646 INFO L899 garLoopResultBuilder]: For program point L258(line 258) no Hoare annotation was computed. [2022-11-20 12:44:27,646 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 134 142) the Hoare annotation is: true [2022-11-20 12:44:27,646 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 134 142) no Hoare annotation was computed. [2022-11-20 12:44:27,654 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 134 142) no Hoare annotation was computed. [2022-11-20 12:44:27,654 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 327) no Hoare annotation was computed. [2022-11-20 12:44:27,654 INFO L899 garLoopResultBuilder]: For program point L320-2(lines 320 327) no Hoare annotation was computed. [2022-11-20 12:44:27,655 INFO L899 garLoopResultBuilder]: For program point L622(lines 622 626) no Hoare annotation was computed. [2022-11-20 12:44:27,655 INFO L895 garLoopResultBuilder]: At program point L622-2(lines 616 627) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-20 12:44:27,656 INFO L902 garLoopResultBuilder]: At program point L329(lines 310 332) the Hoare annotation is: true [2022-11-20 12:44:27,656 INFO L895 garLoopResultBuilder]: At program point L296(lines 292 298) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 12:44:27,656 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 12:44:27,657 INFO L899 garLoopResultBuilder]: For program point L606(lines 606 612) no Hoare annotation was computed. [2022-11-20 12:44:27,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 12:44:27,657 INFO L899 garLoopResultBuilder]: For program point L606-1(lines 606 612) no Hoare annotation was computed. [2022-11-20 12:44:27,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 12:44:27,658 INFO L902 garLoopResultBuilder]: At program point L635(lines 576 639) the Hoare annotation is: true [2022-11-20 12:44:27,659 INFO L895 garLoopResultBuilder]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-20 12:44:27,659 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 12:44:27,659 INFO L895 garLoopResultBuilder]: At program point L632(lines 585 633) the Hoare annotation is: false [2022-11-20 12:44:27,659 INFO L895 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 12:44:27,659 INFO L895 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 12:44:27,660 INFO L899 garLoopResultBuilder]: For program point L587(lines 586 631) no Hoare annotation was computed. [2022-11-20 12:44:27,660 INFO L899 garLoopResultBuilder]: For program point L616(lines 616 627) no Hoare annotation was computed. [2022-11-20 12:44:27,660 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-20 12:44:27,660 INFO L895 garLoopResultBuilder]: At program point L629(lines 586 631) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-20 12:44:27,660 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 602) no Hoare annotation was computed. [2022-11-20 12:44:27,661 INFO L899 garLoopResultBuilder]: For program point L596-1(lines 596 602) no Hoare annotation was computed. [2022-11-20 12:44:27,661 INFO L902 garLoopResultBuilder]: At program point L307(lines 300 309) the Hoare annotation is: true [2022-11-20 12:44:27,661 INFO L899 garLoopResultBuilder]: For program point L588(lines 588 592) no Hoare annotation was computed. [2022-11-20 12:44:27,661 INFO L895 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 12:44:27,662 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 371 395) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-20 12:44:27,662 INFO L895 garLoopResultBuilder]: At program point L184(lines 175 188) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (and .cse5 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)))) (.cse4 (and .cse5 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or (not .cse1) .cse0 .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4)))) [2022-11-20 12:44:27,662 INFO L899 garLoopResultBuilder]: For program point L463(lines 463 469) no Hoare annotation was computed. [2022-11-20 12:44:27,662 INFO L895 garLoopResultBuilder]: At program point L461(line 461) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2)) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (not (= ~methaneLevelCritical~0 0))))) [2022-11-20 12:44:27,663 INFO L895 garLoopResultBuilder]: At program point L463-2(lines 456 472) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (<= 2 ~waterLevel~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~5#1|) .cse3)))) [2022-11-20 12:44:27,663 INFO L899 garLoopResultBuilder]: For program point L461-1(line 461) no Hoare annotation was computed. [2022-11-20 12:44:27,663 INFO L895 garLoopResultBuilder]: At program point L552(lines 537 555) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= 1 ~systemActive~0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not .cse6)) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) .cse6 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~6#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0))) (.cse4 (and .cse5 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse3 .cse4)))) [2022-11-20 12:44:27,664 INFO L895 garLoopResultBuilder]: At program point L453(lines 448 455) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (<= 2 ~waterLevel~0) .cse2))) [2022-11-20 12:44:27,664 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 550) no Hoare annotation was computed. [2022-11-20 12:44:27,664 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0) .cse2)) (.cse1 (not .cse2))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)))))) [2022-11-20 12:44:27,664 INFO L899 garLoopResultBuilder]: For program point L546-2(lines 546 550) no Hoare annotation was computed. [2022-11-20 12:44:27,664 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 371 395) no Hoare annotation was computed. [2022-11-20 12:44:27,664 INFO L899 garLoopResultBuilder]: For program point L379(lines 379 387) no Hoare annotation was computed. [2022-11-20 12:44:27,665 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 392) no Hoare annotation was computed. [2022-11-20 12:44:27,665 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 185) no Hoare annotation was computed. [2022-11-20 12:44:27,665 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-20 12:44:27,665 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 371 395) no Hoare annotation was computed. [2022-11-20 12:44:27,665 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 110 121) no Hoare annotation was computed. [2022-11-20 12:44:27,665 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 110 121) no Hoare annotation was computed. [2022-11-20 12:44:27,666 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 110 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-20 12:44:27,666 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 481 491) the Hoare annotation is: true [2022-11-20 12:44:27,666 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 481 491) no Hoare annotation was computed. [2022-11-20 12:44:27,666 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 481 491) no Hoare annotation was computed. [2022-11-20 12:44:27,666 INFO L902 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: true [2022-11-20 12:44:27,666 INFO L899 garLoopResultBuilder]: For program point L486-1(line 486) no Hoare annotation was computed. [2022-11-20 12:44:27,670 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:27,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:44:27,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:44:27 BoogieIcfgContainer [2022-11-20 12:44:27,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:44:27,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:44:27,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:44:27,712 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:44:27,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:44:17" (3/4) ... [2022-11-20 12:44:27,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:44:27,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-20 12:44:27,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 12:44:27,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 12:44:27,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 12:44:27,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 12:44:27,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-20 12:44:27,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 12:44:27,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 12:44:27,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-20 12:44:27,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-20 12:44:27,741 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 12:44:27,742 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 12:44:27,742 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:44:27,742 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:44:27,743 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:44:27,774 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-20 12:44:27,775 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2022-11-20 12:44:27,777 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0) && 1 == systemActive)) && (((!(1 == systemActive) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) [2022-11-20 12:44:27,778 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && \result == 0)) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) [2022-11-20 12:44:27,779 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && 2 <= waterLevel)) [2022-11-20 12:44:27,779 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2022-11-20 12:44:27,779 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-20 12:44:27,780 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (pumpRunning == 0 && !(\result == 0))) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) [2022-11-20 12:44:27,780 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-20 12:44:27,781 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) [2022-11-20 12:44:27,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:44:27,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:44:27,838 INFO L158 Benchmark]: Toolchain (without parser) took 12082.69ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 122.9MB in the beginning and 94.8MB in the end (delta: 28.1MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2022-11-20 12:44:27,838 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:44:27,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.85ms. Allocated memory is still 169.9MB. Free memory was 122.9MB in the beginning and 104.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 12:44:27,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.99ms. Allocated memory is still 169.9MB. Free memory was 104.0MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:44:27,839 INFO L158 Benchmark]: Boogie Preprocessor took 76.48ms. Allocated memory is still 169.9MB. Free memory was 102.0MB in the beginning and 100.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:44:27,840 INFO L158 Benchmark]: RCFGBuilder took 727.58ms. Allocated memory is still 169.9MB. Free memory was 99.8MB in the beginning and 139.5MB in the end (delta: -39.7MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-11-20 12:44:27,841 INFO L158 Benchmark]: TraceAbstraction took 10509.29ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 138.8MB in the beginning and 101.1MB in the end (delta: 37.7MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. [2022-11-20 12:44:27,841 INFO L158 Benchmark]: Witness Printer took 125.42ms. Allocated memory is still 211.8MB. Free memory was 101.1MB in the beginning and 94.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 12:44:27,844 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 132.1MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.85ms. Allocated memory is still 169.9MB. Free memory was 122.9MB in the beginning and 104.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.99ms. Allocated memory is still 169.9MB. Free memory was 104.0MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.48ms. Allocated memory is still 169.9MB. Free memory was 102.0MB in the beginning and 100.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 727.58ms. Allocated memory is still 169.9MB. Free memory was 99.8MB in the beginning and 139.5MB in the end (delta: -39.7MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10509.29ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 138.8MB in the beginning and 101.1MB in the end (delta: 37.7MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. * Witness Printer took 125.42ms. Allocated memory is still 211.8MB. Free memory was 101.1MB in the beginning and 94.8MB 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: 203]: 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 11 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1626 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1587 mSDsluCounter, 3517 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2340 mSDsCounter, 522 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1855 IncrementalHoareTripleChecker+Invalid, 2377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 522 mSolverCounterUnsat, 1177 mSDtfsCounter, 1855 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=602occurred in iteration=9, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 65 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 1249 PreInvPairs, 1521 NumberOfFragments, 1405 HoareAnnotationTreeSize, 1249 FomulaSimplifications, 2738 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 49 FomulaSimplificationsInter, 10293 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 649 NumberOfCodeBlocks, 649 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 1105 SizeOfPredicates, 3 NumberOfNonLiveVariables, 383 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 96/108 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: 310]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: (((((((tmp == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0) && 1 == systemActive)) && (((!(1 == systemActive) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 423]: Loop Invariant Derived loop invariant: (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (pumpRunning == 0 && !(\result == 0))) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && 2 <= waterLevel)) - InvariantResult [Line: 492]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && \result == 0)) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 448]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-20 12:44:27,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9479d09-b7e9-4a25-896a-57b162ab8d88/bin/uautomizer-ug76WZFUDN/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