./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.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_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/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_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/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_c170529c-e97e-4ebc-bc1a-ad797d39d17f/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 dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 --- 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 11:18:20,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:18:20,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:18:20,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:18:20,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:18:20,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:18:20,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:18:20,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:18:20,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:18:20,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:18:20,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:18:20,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:18:20,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:18:20,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:18:20,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:18:20,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:18:20,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:18:20,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:18:20,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:18:20,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:18:20,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:18:20,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:18:20,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:18:20,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:18:20,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:18:20,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:18:20,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:18:20,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:18:20,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:18:20,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:18:20,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:18:20,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:18:20,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:18:20,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:18:20,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:18:20,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:18:20,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:18:20,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:18:20,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:18:20,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:18:20,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:18:20,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:18:20,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:18:20,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:18:20,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:18:20,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:18:20,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:18:20,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:18:20,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:18:20,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:18:20,881 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:18:20,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:18:20,881 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:18:20,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:18:20,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:18:20,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:18:20,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:18:20,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:18:20,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:18:20,883 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:18:20,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:18:20,884 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:18:20,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:18:20,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:18:20,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:18:20,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:18:20,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:18:20,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:18:20,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:18:20,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:18:20,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:18:20,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:18:20,887 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:18:20,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:18:20,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:18:20,887 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_c170529c-e97e-4ebc-bc1a-ad797d39d17f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 [2022-11-20 11:18:21,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:18:21,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:18:21,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:18:21,152 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:18:21,153 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:18:21,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2022-11-20 11:18:24,208 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:18:24,498 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:18:24,499 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2022-11-20 11:18:24,511 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/data/fc0791678/22867364a574438eaaa9f2b8aca3eaa7/FLAG3e7fa102e [2022-11-20 11:18:24,525 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/data/fc0791678/22867364a574438eaaa9f2b8aca3eaa7 [2022-11-20 11:18:24,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:18:24,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:18:24,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:18:24,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:18:24,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:18:24,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:24" (1/1) ... [2022-11-20 11:18:24,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7471f8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:24, skipping insertion in model container [2022-11-20 11:18:24,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:24" (1/1) ... [2022-11-20 11:18:24,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:18:24,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:18:24,766 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_c170529c-e97e-4ebc-bc1a-ad797d39d17f/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2022-11-20 11:18:24,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:24,922 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:18:24,936 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_c170529c-e97e-4ebc-bc1a-ad797d39d17f/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2022-11-20 11:18:24,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:25,003 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:18:25,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25 WrapperNode [2022-11-20 11:18:25,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:18:25,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:25,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:18:25,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:18:25,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,057 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 201 [2022-11-20 11:18:25,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:25,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:18:25,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:18:25,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:18:25,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,082 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:18:25,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:18:25,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:18:25,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:18:25,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (1/1) ... [2022-11-20 11:18:25,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:18:25,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:25,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:18:25,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:18:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:18:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 11:18:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 11:18:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 11:18:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 11:18:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 11:18:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 11:18:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:18:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:18:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 11:18:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 11:18:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:18:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 11:18:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 11:18:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:18:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:18:25,325 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:18:25,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:18:25,743 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:18:25,754 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:18:25,758 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:18:25,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:25 BoogieIcfgContainer [2022-11-20 11:18:25,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:18:25,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:18:25,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:18:25,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:18:25,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:18:24" (1/3) ... [2022-11-20 11:18:25,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332f128f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:25, skipping insertion in model container [2022-11-20 11:18:25,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:25" (2/3) ... [2022-11-20 11:18:25,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332f128f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:25, skipping insertion in model container [2022-11-20 11:18:25,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:25" (3/3) ... [2022-11-20 11:18:25,783 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2022-11-20 11:18:25,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:18:25,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:18:25,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:18:25,859 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;@2c54dd97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:18:25,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:18:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 11:18:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 11:18:25,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:25,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:25,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:25,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:25,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1722090408, now seen corresponding path program 1 times [2022-11-20 11:18:25,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:25,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218438538] [2022-11-20 11:18:25,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:25,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:26,093 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 11:18:26,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:26,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218438538] [2022-11-20 11:18:26,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218438538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:26,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:26,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:26,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372921499] [2022-11-20 11:18:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:26,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:18:26,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:26,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:18:26,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:18:26,132 INFO L87 Difference]: Start difference. First operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:26,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:26,168 INFO L93 Difference]: Finished difference Result 156 states and 215 transitions. [2022-11-20 11:18:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:18:26,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-20 11:18:26,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:26,178 INFO L225 Difference]: With dead ends: 156 [2022-11-20 11:18:26,178 INFO L226 Difference]: Without dead ends: 73 [2022-11-20 11:18:26,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:18:26,185 INFO L413 NwaCegarLoop]: 104 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, 104 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 11:18:26,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:18:26,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-20 11:18:26,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-20 11:18:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 11:18:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2022-11-20 11:18:26,230 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 19 [2022-11-20 11:18:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:26,230 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2022-11-20 11:18:26,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2022-11-20 11:18:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 11:18:26,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:26,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:26,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:18:26,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:26,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1895744144, now seen corresponding path program 1 times [2022-11-20 11:18:26,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:26,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055047984] [2022-11-20 11:18:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:26,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:26,412 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 11:18:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055047984] [2022-11-20 11:18:26,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055047984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:26,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:26,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:18:26,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459523575] [2022-11-20 11:18:26,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:26,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:26,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:26,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:26,420 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:26,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:26,456 INFO L93 Difference]: Finished difference Result 112 states and 146 transitions. [2022-11-20 11:18:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:26,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-20 11:18:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:26,463 INFO L225 Difference]: With dead ends: 112 [2022-11-20 11:18:26,463 INFO L226 Difference]: Without dead ends: 64 [2022-11-20 11:18:26,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:26,469 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 12 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 148 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 11:18:26,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:18:26,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-20 11:18:26,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-20 11:18:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 58 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 11:18:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2022-11-20 11:18:26,485 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 20 [2022-11-20 11:18:26,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:26,486 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2022-11-20 11:18:26,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:26,486 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2022-11-20 11:18:26,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 11:18:26,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:26,487 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 11:18:26,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:18:26,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 540813392, now seen corresponding path program 1 times [2022-11-20 11:18:26,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:26,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968197466] [2022-11-20 11:18:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:26,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:26,627 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 11:18:26,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:26,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968197466] [2022-11-20 11:18:26,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968197466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:26,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:26,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:26,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688231154] [2022-11-20 11:18:26,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:26,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:26,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:26,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:26,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:26,630 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:26,645 INFO L93 Difference]: Finished difference Result 121 states and 160 transitions. [2022-11-20 11:18:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:26,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-20 11:18:26,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:26,647 INFO L225 Difference]: With dead ends: 121 [2022-11-20 11:18:26,647 INFO L226 Difference]: Without dead ends: 64 [2022-11-20 11:18:26,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 11:18:26,649 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 81 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 11:18:26,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:18:26,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-20 11:18:26,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-20 11:18:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 58 states have internal predecessors, (68), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 11:18:26,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-11-20 11:18:26,659 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 24 [2022-11-20 11:18:26,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:26,660 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-11-20 11:18:26,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:26,660 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-11-20 11:18:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 11:18:26,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:26,662 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] [2022-11-20 11:18:26,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:18:26,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:26,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:26,663 INFO L85 PathProgramCache]: Analyzing trace with hash 412315462, now seen corresponding path program 1 times [2022-11-20 11:18:26,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:26,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534878939] [2022-11-20 11:18:26,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:26,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:18:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:26,797 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 11:18:26,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:26,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534878939] [2022-11-20 11:18:26,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534878939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:26,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:26,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:26,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747413763] [2022-11-20 11:18:26,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:26,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:18:26,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:26,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:18:26,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:18:26,804 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:18:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:27,019 INFO L93 Difference]: Finished difference Result 183 states and 235 transitions. [2022-11-20 11:18:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:18:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-11-20 11:18:27,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:27,022 INFO L225 Difference]: With dead ends: 183 [2022-11-20 11:18:27,022 INFO L226 Difference]: Without dead ends: 126 [2022-11-20 11:18:27,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 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 11:18:27,024 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 164 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:27,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 257 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:18:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-20 11:18:27,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2022-11-20 11:18:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 96 states have (on average 1.28125) internal successors, (123), 103 states have internal predecessors, (123), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-20 11:18:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 148 transitions. [2022-11-20 11:18:27,046 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 148 transitions. Word has length 34 [2022-11-20 11:18:27,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:27,046 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 148 transitions. [2022-11-20 11:18:27,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:18:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 148 transitions. [2022-11-20 11:18:27,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 11:18:27,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:27,048 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] [2022-11-20 11:18:27,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:18:27,049 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:27,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1451427371, now seen corresponding path program 1 times [2022-11-20 11:18:27,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:27,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924302618] [2022-11-20 11:18:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:27,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:27,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:27,251 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 11:18:27,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:27,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924302618] [2022-11-20 11:18:27,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924302618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:27,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:27,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:18:27,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444043245] [2022-11-20 11:18:27,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:27,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:27,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:27,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:27,262 INFO L87 Difference]: Start difference. First operand 120 states and 148 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:18:27,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:27,442 INFO L93 Difference]: Finished difference Result 241 states and 301 transitions. [2022-11-20 11:18:27,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:18:27,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-20 11:18:27,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:27,448 INFO L225 Difference]: With dead ends: 241 [2022-11-20 11:18:27,449 INFO L226 Difference]: Without dead ends: 128 [2022-11-20 11:18:27,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 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 11:18:27,455 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 59 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:27,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 326 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:18:27,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-20 11:18:27,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2022-11-20 11:18:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 106 states have internal predecessors, (126), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-20 11:18:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2022-11-20 11:18:27,497 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 38 [2022-11-20 11:18:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:27,498 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2022-11-20 11:18:27,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:18:27,498 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2022-11-20 11:18:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 11:18:27,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:27,501 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] [2022-11-20 11:18:27,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:18:27,501 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash 440310121, now seen corresponding path program 1 times [2022-11-20 11:18:27,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:27,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338250774] [2022-11-20 11:18:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:27,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:27,687 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 11:18:27,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:27,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338250774] [2022-11-20 11:18:27,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338250774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:27,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:27,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:18:27,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637346627] [2022-11-20 11:18:27,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:27,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:27,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:27,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:27,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:27,690 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:18:27,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:27,845 INFO L93 Difference]: Finished difference Result 252 states and 316 transitions. [2022-11-20 11:18:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:18:27,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-20 11:18:27,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:27,849 INFO L225 Difference]: With dead ends: 252 [2022-11-20 11:18:27,849 INFO L226 Difference]: Without dead ends: 136 [2022-11-20 11:18:27,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:18:27,855 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 130 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:27,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 252 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:18:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-20 11:18:27,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 125. [2022-11-20 11:18:27,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 108 states have internal predecessors, (128), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-20 11:18:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2022-11-20 11:18:27,879 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 38 [2022-11-20 11:18:27,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:27,880 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2022-11-20 11:18:27,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:18:27,880 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2022-11-20 11:18:27,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 11:18:27,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:27,881 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] [2022-11-20 11:18:27,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:18:27,882 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:27,883 INFO L85 PathProgramCache]: Analyzing trace with hash -580758233, now seen corresponding path program 1 times [2022-11-20 11:18:27,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:27,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62352117] [2022-11-20 11:18:27,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:27,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:27,960 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 11:18:27,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:27,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62352117] [2022-11-20 11:18:27,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62352117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:27,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:27,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:27,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607264379] [2022-11-20 11:18:27,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:27,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:18:27,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:27,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:18:27,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:18:27,963 INFO L87 Difference]: Start difference. First operand 125 states and 153 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:18:28,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:28,179 INFO L93 Difference]: Finished difference Result 355 states and 457 transitions. [2022-11-20 11:18:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:18:28,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-20 11:18:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:28,182 INFO L225 Difference]: With dead ends: 355 [2022-11-20 11:18:28,182 INFO L226 Difference]: Without dead ends: 237 [2022-11-20 11:18:28,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:18:28,183 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 179 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:28,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 266 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:18:28,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-20 11:18:28,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2022-11-20 11:18:28,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.2596685082872927) internal successors, (228), 192 states have internal predecessors, (228), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2022-11-20 11:18:28,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2022-11-20 11:18:28,209 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 38 [2022-11-20 11:18:28,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:28,209 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2022-11-20 11:18:28,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:18:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2022-11-20 11:18:28,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 11:18:28,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:28,211 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] [2022-11-20 11:18:28,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:18:28,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash -360899650, now seen corresponding path program 1 times [2022-11-20 11:18:28,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:28,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712944872] [2022-11-20 11:18:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:18:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:28,311 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 11:18:28,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:28,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712944872] [2022-11-20 11:18:28,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712944872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:28,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:28,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:18:28,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223666300] [2022-11-20 11:18:28,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:28,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:28,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:28,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:28,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:28,314 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:18:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:28,516 INFO L93 Difference]: Finished difference Result 451 states and 570 transitions. [2022-11-20 11:18:28,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:18:28,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2022-11-20 11:18:28,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:28,519 INFO L225 Difference]: With dead ends: 451 [2022-11-20 11:18:28,519 INFO L226 Difference]: Without dead ends: 229 [2022-11-20 11:18:28,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:18:28,521 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 99 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:28,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 303 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:18:28,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-20 11:18:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2022-11-20 11:18:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 190 states have internal predecessors, (224), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2022-11-20 11:18:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 285 transitions. [2022-11-20 11:18:28,558 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 285 transitions. Word has length 40 [2022-11-20 11:18:28,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:28,560 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 285 transitions. [2022-11-20 11:18:28,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:18:28,561 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 285 transitions. [2022-11-20 11:18:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 11:18:28,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:28,564 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] [2022-11-20 11:18:28,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:18:28,565 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:28,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2038696205, now seen corresponding path program 1 times [2022-11-20 11:18:28,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:28,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265195512] [2022-11-20 11:18:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:18:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:18:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:28,717 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 11:18:28,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:28,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265195512] [2022-11-20 11:18:28,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265195512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:28,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:28,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:18:28,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880935886] [2022-11-20 11:18:28,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:28,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:18:28,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:18:28,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:18:28,721 INFO L87 Difference]: Start difference. First operand 227 states and 285 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:18:29,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:29,092 INFO L93 Difference]: Finished difference Result 456 states and 585 transitions. [2022-11-20 11:18:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:18:29,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-11-20 11:18:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:29,100 INFO L225 Difference]: With dead ends: 456 [2022-11-20 11:18:29,100 INFO L226 Difference]: Without dead ends: 276 [2022-11-20 11:18:29,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:18:29,103 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 162 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:29,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 439 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:18:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-20 11:18:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 253. [2022-11-20 11:18:29,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 201 states have (on average 1.2338308457711442) internal successors, (248), 215 states have internal predecessors, (248), 24 states have call successors, (24), 23 states have call predecessors, (24), 27 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-11-20 11:18:29,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 313 transitions. [2022-11-20 11:18:29,132 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 313 transitions. Word has length 42 [2022-11-20 11:18:29,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:29,132 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 313 transitions. [2022-11-20 11:18:29,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:18:29,132 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 313 transitions. [2022-11-20 11:18:29,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 11:18:29,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:29,134 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 11:18:29,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:18:29,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:29,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash 871440435, now seen corresponding path program 1 times [2022-11-20 11:18:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:29,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194125057] [2022-11-20 11:18:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:18:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:29,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:18:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 11:18:29,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:29,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194125057] [2022-11-20 11:18:29,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194125057] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:18:29,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396269283] [2022-11-20 11:18:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:29,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:29,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:29,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:18:29,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:18:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:29,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:18:29,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:18:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:29,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:18:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:29,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396269283] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:18:29,762 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:18:29,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2022-11-20 11:18:29,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232764470] [2022-11-20 11:18:29,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:18:29,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:18:29,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:29,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:18:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:18:29,765 INFO L87 Difference]: Start difference. First operand 253 states and 313 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 11:18:30,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:30,801 INFO L93 Difference]: Finished difference Result 628 states and 814 transitions. [2022-11-20 11:18:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 11:18:30,801 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2022-11-20 11:18:30,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:30,804 INFO L225 Difference]: With dead ends: 628 [2022-11-20 11:18:30,804 INFO L226 Difference]: Without dead ends: 424 [2022-11-20 11:18:30,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 140 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=312, Invalid=1328, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 11:18:30,807 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 312 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:30,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 912 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:18:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-20 11:18:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 355. [2022-11-20 11:18:30,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 282 states have (on average 1.2234042553191489) internal successors, (345), 301 states have internal predecessors, (345), 34 states have call successors, (34), 33 states have call predecessors, (34), 38 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2022-11-20 11:18:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 440 transitions. [2022-11-20 11:18:30,869 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 440 transitions. Word has length 69 [2022-11-20 11:18:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:30,870 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 440 transitions. [2022-11-20 11:18:30,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 11:18:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 440 transitions. [2022-11-20 11:18:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 11:18:30,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:30,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:30,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:18:31,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 11:18:31,079 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:31,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1761843705, now seen corresponding path program 1 times [2022-11-20 11:18:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:31,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984454817] [2022-11-20 11:18:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:31,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:18:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:18:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 11:18:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 11:18:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:18:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,208 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:18:31,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:31,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984454817] [2022-11-20 11:18:31,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984454817] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:18:31,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106948139] [2022-11-20 11:18:31,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:31,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:31,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:31,210 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:18:31,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:18:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:31,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:18:31,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:18:31,629 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 53 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:31,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:18:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:18:31,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106948139] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:18:31,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:18:31,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 20 [2022-11-20 11:18:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592217086] [2022-11-20 11:18:31,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:18:31,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 11:18:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 11:18:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:18:31,919 INFO L87 Difference]: Start difference. First operand 355 states and 440 transitions. Second operand has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (14), 8 states have call predecessors, (14), 5 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-20 11:18:34,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:34,262 INFO L93 Difference]: Finished difference Result 916 states and 1194 transitions. [2022-11-20 11:18:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 11:18:34,263 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (14), 8 states have call predecessors, (14), 5 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 103 [2022-11-20 11:18:34,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:34,266 INFO L225 Difference]: With dead ends: 916 [2022-11-20 11:18:34,266 INFO L226 Difference]: Without dead ends: 609 [2022-11-20 11:18:34,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=636, Invalid=2334, Unknown=0, NotChecked=0, Total=2970 [2022-11-20 11:18:34,269 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 661 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:34,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1640 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 11:18:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-11-20 11:18:34,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 525. [2022-11-20 11:18:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 411 states have (on average 1.2092457420924574) internal successors, (497), 435 states have internal predecessors, (497), 56 states have call successors, (56), 54 states have call predecessors, (56), 57 states have return successors, (91), 51 states have call predecessors, (91), 56 states have call successors, (91) [2022-11-20 11:18:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 644 transitions. [2022-11-20 11:18:34,329 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 644 transitions. Word has length 103 [2022-11-20 11:18:34,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:34,329 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 644 transitions. [2022-11-20 11:18:34,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (14), 8 states have call predecessors, (14), 5 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-20 11:18:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 644 transitions. [2022-11-20 11:18:34,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-20 11:18:34,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:34,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:34,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:18:34,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:34,537 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:34,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:34,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1113823743, now seen corresponding path program 1 times [2022-11-20 11:18:34,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:34,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726059706] [2022-11-20 11:18:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:34,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:18:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 11:18:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:18:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 11:18:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 11:18:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:18:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 11:18:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:18:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,743 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 11:18:34,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:34,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726059706] [2022-11-20 11:18:34,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726059706] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:18:34,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147546681] [2022-11-20 11:18:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:34,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:34,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:34,746 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:18:34,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:18:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:18:34,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:18:34,876 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:18:34,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:18:34,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147546681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:34,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:18:34,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2022-11-20 11:18:34,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232756422] [2022-11-20 11:18:34,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:34,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:18:34,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:34,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:18:34,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:18:34,878 INFO L87 Difference]: Start difference. First operand 525 states and 644 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 11:18:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:34,931 INFO L93 Difference]: Finished difference Result 676 states and 824 transitions. [2022-11-20 11:18:34,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:18:34,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 110 [2022-11-20 11:18:34,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:34,932 INFO L225 Difference]: With dead ends: 676 [2022-11-20 11:18:34,932 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:18:34,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:18:34,934 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 27 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:34,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 297 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:18:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:18:34,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:18:34,936 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 11:18:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:18:34,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2022-11-20 11:18:34,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:34,956 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:18:34,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 11:18:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:18:34,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:18:34,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:18:34,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:18:35,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 11:18:35,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:18:37,519 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 303 309) no Hoare annotation was computed. [2022-11-20 11:18:37,519 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 303 309) the Hoare annotation is: true [2022-11-20 11:18:37,520 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 93 104) no Hoare annotation was computed. [2022-11-20 11:18:37,520 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 93 104) the Hoare annotation is: true [2022-11-20 11:18:37,520 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 93 104) no Hoare annotation was computed. [2022-11-20 11:18:37,520 INFO L899 garLoopResultBuilder]: For program point L283-1(lines 282 301) no Hoare annotation was computed. [2022-11-20 11:18:37,520 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 353) no Hoare annotation was computed. [2022-11-20 11:18:37,520 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 358) no Hoare annotation was computed. [2022-11-20 11:18:37,520 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2022-11-20 11:18:37,520 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 591) no Hoare annotation was computed. [2022-11-20 11:18:37,520 INFO L895 garLoopResultBuilder]: At program point L73-2(lines 69 80) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-11-20 11:18:37,521 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 279 302) no Hoare annotation was computed. [2022-11-20 11:18:37,521 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 594) no Hoare annotation was computed. [2022-11-20 11:18:37,521 INFO L895 garLoopResultBuilder]: At program point L581-1(lines 573 597) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (<= 2 ~waterLevel~0) .cse6 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) .cse5 (<= 2 |timeShift_getWaterLevel_#res#1|))) (.cse2 (not .cse6)) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse3 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (not (<= 1 |old(~waterLevel~0)|)) (and .cse3 .cse4 .cse5)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse1 .cse2 .cse4 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse3 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |timeShift_getWaterLevel_#res#1|)))))) [2022-11-20 11:18:37,521 INFO L895 garLoopResultBuilder]: At program point L375(lines 370 377) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse0 (< |old(~waterLevel~0)| 2)))) [2022-11-20 11:18:37,521 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 466) no Hoare annotation was computed. [2022-11-20 11:18:37,521 INFO L899 garLoopResultBuilder]: For program point L462-2(lines 462 466) no Hoare annotation was computed. [2022-11-20 11:18:37,521 INFO L895 garLoopResultBuilder]: At program point L165(lines 160 168) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-11-20 11:18:37,522 INFO L895 garLoopResultBuilder]: At program point L351(line 351) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2)))) [2022-11-20 11:18:37,522 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-20 11:18:37,522 INFO L895 garLoopResultBuilder]: At program point L356(line 356) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)))) [2022-11-20 11:18:37,522 INFO L895 garLoopResultBuilder]: At program point L356-1(lines 337 361) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse1 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 .cse2 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-11-20 11:18:37,522 INFO L899 garLoopResultBuilder]: For program point L290-1(lines 290 296) no Hoare annotation was computed. [2022-11-20 11:18:37,522 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2)))) [2022-11-20 11:18:37,523 INFO L895 garLoopResultBuilder]: At program point L468(lines 453 471) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-11-20 11:18:37,523 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 279 302) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)))) [2022-11-20 11:18:37,523 INFO L895 garLoopResultBuilder]: At program point L142(lines 137 145) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse2 (< |old(~waterLevel~0)| 2)) (.cse3 (and (<= 2 ~waterLevel~0) .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse5)) (.cse4 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse4 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |timeShift_getWaterLevel_#res#1|)) .cse3) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse4 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1)))))) [2022-11-20 11:18:37,523 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 279 302) no Hoare annotation was computed. [2022-11-20 11:18:37,523 INFO L895 garLoopResultBuilder]: At program point L394(lines 389 397) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2)))) [2022-11-20 11:18:37,523 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-20 11:18:37,523 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2022-11-20 11:18:37,524 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2022-11-20 11:18:37,524 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 172 201) the Hoare annotation is: true [2022-11-20 11:18:37,524 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2022-11-20 11:18:37,524 INFO L902 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2022-11-20 11:18:37,524 INFO L899 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2022-11-20 11:18:37,524 INFO L902 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2022-11-20 11:18:37,524 INFO L902 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2022-11-20 11:18:37,524 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2022-11-20 11:18:37,524 INFO L902 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2022-11-20 11:18:37,524 INFO L899 garLoopResultBuilder]: For program point L258-2(lines 258 265) no Hoare annotation was computed. [2022-11-20 11:18:37,524 INFO L895 garLoopResultBuilder]: At program point L568(lines 563 571) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:18:37,524 INFO L902 garLoopResultBuilder]: At program point L242(lines 235 244) the Hoare annotation is: true [2022-11-20 11:18:37,525 INFO L895 garLoopResultBuilder]: At program point L560(lines 556 562) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:18:37,525 INFO L902 garLoopResultBuilder]: At program point L267(lines 248 270) the Hoare annotation is: true [2022-11-20 11:18:37,525 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 523) no Hoare annotation was computed. [2022-11-20 11:18:37,525 INFO L895 garLoopResultBuilder]: At program point L519-2(lines 513 524) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (< ~waterLevel~0 2)) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-11-20 11:18:37,525 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:18:37,525 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:18:37,525 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:18:37,525 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 509) no Hoare annotation was computed. [2022-11-20 11:18:37,525 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 503 509) no Hoare annotation was computed. [2022-11-20 11:18:37,525 INFO L902 garLoopResultBuilder]: At program point L532(lines 473 536) the Hoare annotation is: true [2022-11-20 11:18:37,526 INFO L895 garLoopResultBuilder]: At program point L495(line 495) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-11-20 11:18:37,526 INFO L895 garLoopResultBuilder]: At program point L553(lines 549 555) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:18:37,526 INFO L895 garLoopResultBuilder]: At program point L231(lines 227 233) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:18:37,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:18:37,526 INFO L895 garLoopResultBuilder]: At program point L529(lines 482 530) the Hoare annotation is: false [2022-11-20 11:18:37,526 INFO L899 garLoopResultBuilder]: For program point L484(lines 483 528) no Hoare annotation was computed. [2022-11-20 11:18:37,526 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 524) no Hoare annotation was computed. [2022-11-20 11:18:37,526 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (< ~waterLevel~0 2)) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-11-20 11:18:37,526 INFO L895 garLoopResultBuilder]: At program point L526(lines 483 528) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-11-20 11:18:37,526 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 499) no Hoare annotation was computed. [2022-11-20 11:18:37,531 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2022-11-20 11:18:37,531 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 489) no Hoare annotation was computed. [2022-11-20 11:18:37,531 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 265) no Hoare annotation was computed. [2022-11-20 11:18:37,531 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 311 335) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-11-20 11:18:37,532 INFO L895 garLoopResultBuilder]: At program point L155(lines 146 159) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or (not (= ~waterLevel~0 1)) .cse0 .cse2 (and .cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)))))) [2022-11-20 11:18:37,532 INFO L895 garLoopResultBuilder]: At program point L325(line 325) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse3))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2))))) [2022-11-20 11:18:37,532 INFO L895 garLoopResultBuilder]: At program point L449(lines 434 452) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1| 0))) .cse2))) [2022-11-20 11:18:37,532 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 327) no Hoare annotation was computed. [2022-11-20 11:18:37,533 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 311 335) no Hoare annotation was computed. [2022-11-20 11:18:37,533 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 332) no Hoare annotation was computed. [2022-11-20 11:18:37,533 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2022-11-20 11:18:37,533 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 443 447) no Hoare annotation was computed. [2022-11-20 11:18:37,533 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2022-11-20 11:18:37,533 INFO L895 garLoopResultBuilder]: At program point L367(lines 362 369) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-20 11:18:37,534 INFO L895 garLoopResultBuilder]: At program point L330(line 330) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-11-20 11:18:37,535 INFO L899 garLoopResultBuilder]: For program point L330-1(lines 311 335) no Hoare annotation was computed. [2022-11-20 11:18:37,536 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 81 92) no Hoare annotation was computed. [2022-11-20 11:18:37,536 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 81 92) no Hoare annotation was computed. [2022-11-20 11:18:37,537 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 81 92) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 11:18:37,540 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:37,544 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:18:37,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:18:37 BoogieIcfgContainer [2022-11-20 11:18:37,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:18:37,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:18:37,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:18:37,577 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:18:37,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:25" (3/4) ... [2022-11-20 11:18:37,580 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:18:37,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 11:18:37,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 11:18:37,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 11:18:37,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 11:18:37,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:18:37,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 11:18:37,594 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 11:18:37,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 11:18:37,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:18:37,596 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:18:37,596 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:18:37,622 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) [2022-11-20 11:18:37,623 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(1 == systemActive) || \old(waterLevel) < 2) || \old(waterLevel) == waterLevel) || (((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)) [2022-11-20 11:18:37,624 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || (((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result)) && (((!(1 == systemActive) || \old(waterLevel) < 2) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || (((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) [2022-11-20 11:18:37,624 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || ((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \old(waterLevel) < 2) && \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && (((((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) [2022-11-20 11:18:37,624 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || ((pumpRunning == \old(pumpRunning) && \result == 0) && \old(waterLevel) <= waterLevel + 1)) [2022-11-20 11:18:37,625 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) [2022-11-20 11:18:37,625 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) [2022-11-20 11:18:37,625 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)) [2022-11-20 11:18:37,625 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || !(1 == systemActive)) [2022-11-20 11:18:37,626 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) [2022-11-20 11:18:37,626 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || \old(waterLevel) < 2) [2022-11-20 11:18:37,626 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) [2022-11-20 11:18:37,648 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:18:37,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:18:37,649 INFO L158 Benchmark]: Toolchain (without parser) took 13119.41ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 130.2MB in the beginning and 184.2MB in the end (delta: -54.0MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-11-20 11:18:37,649 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:18:37,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.54ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 111.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:18:37,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.59ms. Allocated memory is still 174.1MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:18:37,650 INFO L158 Benchmark]: Boogie Preprocessor took 27.19ms. Allocated memory is still 174.1MB. Free memory was 109.2MB in the beginning and 107.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:18:37,651 INFO L158 Benchmark]: RCFGBuilder took 675.38ms. Allocated memory is still 174.1MB. Free memory was 107.8MB in the beginning and 91.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:18:37,651 INFO L158 Benchmark]: TraceAbstraction took 11811.62ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 91.0MB in the beginning and 189.5MB in the end (delta: -98.5MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2022-11-20 11:18:37,652 INFO L158 Benchmark]: Witness Printer took 72.32ms. Allocated memory is still 251.7MB. Free memory was 189.5MB in the beginning and 184.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:18:37,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.54ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 111.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.59ms. Allocated memory is still 174.1MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.19ms. Allocated memory is still 174.1MB. Free memory was 109.2MB in the beginning and 107.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.38ms. Allocated memory is still 174.1MB. Free memory was 107.8MB in the beginning and 91.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11811.62ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 91.0MB in the beginning and 189.5MB in the end (delta: -98.5MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. * Witness Printer took 72.32ms. Allocated memory is still 251.7MB. Free memory was 189.5MB in the beginning and 184.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: 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 7 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1897 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1870 mSDsluCounter, 5025 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3842 mSDsCounter, 448 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3350 IncrementalHoareTripleChecker+Invalid, 3798 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 448 mSolverCounterUnsat, 1183 mSDtfsCounter, 3350 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 688 GetRequests, 531 SyntacticMatches, 8 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1014 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=11, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 208 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 977 PreInvPairs, 1057 NumberOfFragments, 915 HoareAnnotationTreeSize, 977 FomulaSimplifications, 612 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 38 FomulaSimplificationsInter, 4889 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 857 NumberOfCodeBlocks, 857 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1012 ConstructedInterpolants, 0 QuantifiedInterpolants, 1944 SizeOfPredicates, 10 NumberOfNonLiveVariables, 987 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 344/382 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: 337]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(1 == systemActive) || \old(waterLevel) < 2) || \old(waterLevel) == waterLevel) || (((((((1 <= tmp && \result == 0) && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 362]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) - InvariantResult [Line: 482]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || (((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result)) && (((!(1 == systemActive) || \old(waterLevel) < 2) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || (((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || !(1 == systemActive)) - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || ((pumpRunning == \old(pumpRunning) && \result == 0) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || ((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \old(waterLevel) < 2) && \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && (((((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 370]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || \old(waterLevel) < 2) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) RESULT: Ultimate proved your program to be correct! [2022-11-20 11:18:37,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c170529c-e97e-4ebc-bc1a-ad797d39d17f/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