./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/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_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/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_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/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 ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 --- 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 11:28:15,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:28:15,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:28:15,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:28:15,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:28:15,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:28:15,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:28:15,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:28:15,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:28:15,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:28:15,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:28:15,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:28:15,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:28:15,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:28:15,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:28:15,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:28:15,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:28:15,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:28:15,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:28:15,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:28:15,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:28:15,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:28:15,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:28:15,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:28:15,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:28:15,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:28:15,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:28:15,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:28:15,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:28:15,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:28:15,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:28:15,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:28:15,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:28:15,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:28:15,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:28:15,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:28:15,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:28:15,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:28:15,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:28:15,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:28:15,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:28:15,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:28:15,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:28:15,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:28:15,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:28:15,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:28:15,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:28:15,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:28:15,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:28:15,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:28:15,907 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:28:15,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:28:15,908 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:28:15,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:28:15,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:28:15,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:28:15,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:28:15,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:28:15,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:28:15,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:28:15,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:28:15,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:28:15,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:28:15,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:28:15,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:28:15,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:28:15,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:28:15,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:28:15,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:28:15,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:28:15,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:28:15,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:28:15,915 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:28:15,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:28:15,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:28:15,916 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_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 [2022-11-20 11:28:16,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:28:16,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:28:16,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:28:16,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:28:16,319 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:28:16,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2022-11-20 11:28:19,729 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:28:20,108 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:28:20,116 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2022-11-20 11:28:20,128 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/data/c2782e3f4/4d76dc8a97d54bef858d6308b27b2868/FLAG952e92a10 [2022-11-20 11:28:20,145 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/data/c2782e3f4/4d76dc8a97d54bef858d6308b27b2868 [2022-11-20 11:28:20,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:28:20,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:28:20,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:28:20,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:28:20,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:28:20,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c7350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20, skipping insertion in model container [2022-11-20 11:28:20,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:28:20,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:28:20,457 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_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2022-11-20 11:28:20,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:28:20,649 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:28:20,677 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_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2022-11-20 11:28:20,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:28:20,781 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:28:20,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20 WrapperNode [2022-11-20 11:28:20,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:28:20,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:28:20,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:28:20,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:28:20,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,853 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 194 [2022-11-20 11:28:20,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:28:20,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:28:20,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:28:20,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:28:20,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:28:20,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:28:20,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:28:20,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:28:20,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (1/1) ... [2022-11-20 11:28:20,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:28:20,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:28:20,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:28:20,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:28:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:28:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 11:28:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 11:28:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 11:28:21,023 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 11:28:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 11:28:21,023 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 11:28:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 11:28:21,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 11:28:21,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:28:21,024 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:28:21,024 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 11:28:21,025 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 11:28:21,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:28:21,025 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 11:28:21,025 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 11:28:21,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:28:21,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:28:21,151 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:28:21,154 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:28:21,508 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:28:21,518 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:28:21,518 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:28:21,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:21 BoogieIcfgContainer [2022-11-20 11:28:21,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:28:21,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:28:21,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:28:21,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:28:21,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:28:20" (1/3) ... [2022-11-20 11:28:21,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b92055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:28:21, skipping insertion in model container [2022-11-20 11:28:21,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:20" (2/3) ... [2022-11-20 11:28:21,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b92055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:28:21, skipping insertion in model container [2022-11-20 11:28:21,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:21" (3/3) ... [2022-11-20 11:28:21,534 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2022-11-20 11:28:21,559 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:28:21,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:28:21,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:28:21,643 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;@47d12413, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:28:21,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:28:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 75 states have internal predecessors, (93), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 11:28:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 11:28:21,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:21,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:21,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:21,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1803312447, now seen corresponding path program 1 times [2022-11-20 11:28:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:21,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776268287] [2022-11-20 11:28:21,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:21,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:28:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:22,111 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 11:28:22,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:22,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776268287] [2022-11-20 11:28:22,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776268287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:22,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:22,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:28:22,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935694246] [2022-11-20 11:28:22,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:22,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:28:22,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:22,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:28:22,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:28:22,180 INFO L87 Difference]: Start difference. First operand has 88 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 75 states have internal predecessors, (93), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:28:22,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:22,251 INFO L93 Difference]: Finished difference Result 167 states and 228 transitions. [2022-11-20 11:28:22,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:28:22,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 11:28:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:22,272 INFO L225 Difference]: With dead ends: 167 [2022-11-20 11:28:22,275 INFO L226 Difference]: Without dead ends: 79 [2022-11-20 11:28:22,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:28:22,288 INFO L413 NwaCegarLoop]: 111 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, 111 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 11:28:22,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:28:22,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-20 11:28:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-20 11:28:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 67 states have internal predecessors, (79), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 11:28:22,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2022-11-20 11:28:22,386 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 25 [2022-11-20 11:28:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:22,388 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2022-11-20 11:28:22,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:28:22,389 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2022-11-20 11:28:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 11:28:22,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:22,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:22,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:28:22,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:22,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:22,400 INFO L85 PathProgramCache]: Analyzing trace with hash 220336758, now seen corresponding path program 1 times [2022-11-20 11:28:22,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:22,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363730724] [2022-11-20 11:28:22,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:22,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:28:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:22,572 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 11:28:22,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:22,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363730724] [2022-11-20 11:28:22,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363730724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:22,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:22,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:28:22,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666263945] [2022-11-20 11:28:22,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:22,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:28:22,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:28:22,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:28:22,578 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:28:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:22,628 INFO L93 Difference]: Finished difference Result 122 states and 158 transitions. [2022-11-20 11:28:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:28:22,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 11:28:22,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:22,633 INFO L225 Difference]: With dead ends: 122 [2022-11-20 11:28:22,633 INFO L226 Difference]: Without dead ends: 70 [2022-11-20 11:28:22,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:28:22,636 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 13 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 161 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 11:28:22,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 161 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:28:22,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-20 11:28:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-20 11:28:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 61 states have internal predecessors, (72), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 11:28:22,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-20 11:28:22,662 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 26 [2022-11-20 11:28:22,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:22,662 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-20 11:28:22,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:28:22,663 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-20 11:28:22,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 11:28:22,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:22,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:22,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:28:22,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:22,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:22,667 INFO L85 PathProgramCache]: Analyzing trace with hash 753977737, now seen corresponding path program 1 times [2022-11-20 11:28:22,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:22,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834682451] [2022-11-20 11:28:22,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:22,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:22,789 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 11:28:22,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:22,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834682451] [2022-11-20 11:28:22,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834682451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:22,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:22,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:28:22,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176612167] [2022-11-20 11:28:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:22,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:28:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:28:22,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:28:22,793 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:28:22,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:22,822 INFO L93 Difference]: Finished difference Result 132 states and 173 transitions. [2022-11-20 11:28:22,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:28:22,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-11-20 11:28:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:22,825 INFO L225 Difference]: With dead ends: 132 [2022-11-20 11:28:22,825 INFO L226 Difference]: Without dead ends: 70 [2022-11-20 11:28:22,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:28:22,827 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 84 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:22,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:28:22,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-20 11:28:22,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-20 11:28:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 61 states have internal predecessors, (71), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 11:28:22,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-11-20 11:28:22,844 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 31 [2022-11-20 11:28:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:22,845 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-11-20 11:28:22,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:28:22,845 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-11-20 11:28:22,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 11:28:22,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:22,847 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] [2022-11-20 11:28:22,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:28:22,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:22,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:22,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1236058631, now seen corresponding path program 1 times [2022-11-20 11:28:22,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:22,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354448904] [2022-11-20 11:28:22,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:22,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:28:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:23,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-20 11:28:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:23,115 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 11:28:23,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:23,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354448904] [2022-11-20 11:28:23,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354448904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:23,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:23,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:23,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075191682] [2022-11-20 11:28:23,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:23,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:28:23,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:23,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:28:23,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:28:23,119 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:28:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:23,473 INFO L93 Difference]: Finished difference Result 207 states and 265 transitions. [2022-11-20 11:28:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:28:23,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2022-11-20 11:28:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:23,481 INFO L225 Difference]: With dead ends: 207 [2022-11-20 11:28:23,483 INFO L226 Difference]: Without dead ends: 145 [2022-11-20 11:28:23,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 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 11:28:23,489 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 161 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:23,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 285 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:28:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-20 11:28:23,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 139. [2022-11-20 11:28:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 107 states have (on average 1.280373831775701) internal successors, (137), 114 states have internal predecessors, (137), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-20 11:28:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2022-11-20 11:28:23,554 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 41 [2022-11-20 11:28:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:23,555 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2022-11-20 11:28:23,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:28:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2022-11-20 11:28:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:28:23,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:23,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:23,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:28:23,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:23,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:23,568 INFO L85 PathProgramCache]: Analyzing trace with hash -649911993, now seen corresponding path program 1 times [2022-11-20 11:28:23,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:23,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402657170] [2022-11-20 11:28:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:23,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 11:28:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:23,888 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 11:28:23,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:23,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402657170] [2022-11-20 11:28:23,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402657170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:23,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:23,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:28:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485966826] [2022-11-20 11:28:23,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:23,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:23,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:23,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:23,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:28:23,902 INFO L87 Difference]: Start difference. First operand 139 states and 172 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:28:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:24,155 INFO L93 Difference]: Finished difference Result 278 states and 348 transitions. [2022-11-20 11:28:24,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:28:24,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-20 11:28:24,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:24,160 INFO L225 Difference]: With dead ends: 278 [2022-11-20 11:28:24,160 INFO L226 Difference]: Without dead ends: 147 [2022-11-20 11:28:24,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 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 11:28:24,169 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 58 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:24,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 356 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:28:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-11-20 11:28:24,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 142. [2022-11-20 11:28:24,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 110 states have (on average 1.2727272727272727) internal successors, (140), 117 states have internal predecessors, (140), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-20 11:28:24,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 175 transitions. [2022-11-20 11:28:24,217 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 175 transitions. Word has length 45 [2022-11-20 11:28:24,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:24,217 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 175 transitions. [2022-11-20 11:28:24,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:28:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 175 transitions. [2022-11-20 11:28:24,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:28:24,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:24,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:24,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:28:24,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:24,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:24,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1956111561, now seen corresponding path program 1 times [2022-11-20 11:28:24,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:24,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381385413] [2022-11-20 11:28:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:24,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 11:28:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:24,329 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 11:28:24,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:24,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381385413] [2022-11-20 11:28:24,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381385413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:24,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:24,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:24,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568911861] [2022-11-20 11:28:24,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:24,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:28:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:28:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:28:24,333 INFO L87 Difference]: Start difference. First operand 142 states and 175 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:28:24,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:24,494 INFO L93 Difference]: Finished difference Result 286 states and 359 transitions. [2022-11-20 11:28:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:28:24,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-20 11:28:24,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:24,505 INFO L225 Difference]: With dead ends: 286 [2022-11-20 11:28:24,505 INFO L226 Difference]: Without dead ends: 152 [2022-11-20 11:28:24,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:28:24,512 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 61 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:24,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 279 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:28:24,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-20 11:28:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 144. [2022-11-20 11:28:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 119 states have internal predecessors, (142), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-20 11:28:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 177 transitions. [2022-11-20 11:28:24,558 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 177 transitions. Word has length 45 [2022-11-20 11:28:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:24,558 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 177 transitions. [2022-11-20 11:28:24,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:28:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 177 transitions. [2022-11-20 11:28:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:28:24,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:24,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:24,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:28:24,562 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:24,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:24,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1916153909, now seen corresponding path program 1 times [2022-11-20 11:28:24,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:24,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862787603] [2022-11-20 11:28:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:24,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 11:28:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:24,711 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 11:28:24,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:24,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862787603] [2022-11-20 11:28:24,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862787603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:24,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:24,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:24,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232077325] [2022-11-20 11:28:24,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:24,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:28:24,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:24,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:28:24,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:28:24,715 INFO L87 Difference]: Start difference. First operand 144 states and 177 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:28:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:25,008 INFO L93 Difference]: Finished difference Result 405 states and 519 transitions. [2022-11-20 11:28:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:28:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-20 11:28:25,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:25,012 INFO L225 Difference]: With dead ends: 405 [2022-11-20 11:28:25,012 INFO L226 Difference]: Without dead ends: 269 [2022-11-20 11:28:25,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 11:28:25,014 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 198 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:25,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 295 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:28:25,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-20 11:28:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 261. [2022-11-20 11:28:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 201 states have (on average 1.2587064676616915) internal successors, (253), 212 states have internal predecessors, (253), 30 states have call successors, (30), 28 states have call predecessors, (30), 29 states have return successors, (45), 30 states have call predecessors, (45), 30 states have call successors, (45) [2022-11-20 11:28:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 328 transitions. [2022-11-20 11:28:25,051 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 328 transitions. Word has length 45 [2022-11-20 11:28:25,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:25,052 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 328 transitions. [2022-11-20 11:28:25,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:28:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 328 transitions. [2022-11-20 11:28:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 11:28:25,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:25,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:25,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:28:25,054 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:25,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1607715167, now seen corresponding path program 1 times [2022-11-20 11:28:25,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:25,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337917555] [2022-11-20 11:28:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:28:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:28:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,179 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 11:28:25,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:25,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337917555] [2022-11-20 11:28:25,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337917555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:25,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:25,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:28:25,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862288275] [2022-11-20 11:28:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:25,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:25,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:25,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:25,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:28:25,183 INFO L87 Difference]: Start difference. First operand 261 states and 328 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:28:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:25,449 INFO L93 Difference]: Finished difference Result 530 states and 677 transitions. [2022-11-20 11:28:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:28:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-11-20 11:28:25,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:25,453 INFO L225 Difference]: With dead ends: 530 [2022-11-20 11:28:25,454 INFO L226 Difference]: Without dead ends: 277 [2022-11-20 11:28:25,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:28:25,456 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 113 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:25,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 330 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:28:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-20 11:28:25,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 257. [2022-11-20 11:28:25,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 197 states have (on average 1.2233502538071066) internal successors, (241), 208 states have internal predecessors, (241), 30 states have call successors, (30), 28 states have call predecessors, (30), 29 states have return successors, (45), 30 states have call predecessors, (45), 30 states have call successors, (45) [2022-11-20 11:28:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 316 transitions. [2022-11-20 11:28:25,495 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 316 transitions. Word has length 47 [2022-11-20 11:28:25,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:25,495 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 316 transitions. [2022-11-20 11:28:25,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:28:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 316 transitions. [2022-11-20 11:28:25,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 11:28:25,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:25,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:25,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:28:25,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:25,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:25,499 INFO L85 PathProgramCache]: Analyzing trace with hash 715309297, now seen corresponding path program 1 times [2022-11-20 11:28:25,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:25,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565613400] [2022-11-20 11:28:25,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:25,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:28:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:28:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:28:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:25,581 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 11:28:25,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:25,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565613400] [2022-11-20 11:28:25,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565613400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:25,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:25,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:25,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431916195] [2022-11-20 11:28:25,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:25,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:28:25,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:25,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:28:25,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:28:25,585 INFO L87 Difference]: Start difference. First operand 257 states and 316 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:28:25,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:25,991 INFO L93 Difference]: Finished difference Result 473 states and 598 transitions. [2022-11-20 11:28:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:28:25,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-11-20 11:28:25,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:25,996 INFO L225 Difference]: With dead ends: 473 [2022-11-20 11:28:25,996 INFO L226 Difference]: Without dead ends: 471 [2022-11-20 11:28:25,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:28:25,998 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 264 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:25,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 227 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:28:25,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-11-20 11:28:26,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 431. [2022-11-20 11:28:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 330 states have (on average 1.2242424242424241) internal successors, (404), 351 states have internal predecessors, (404), 52 states have call successors, (52), 42 states have call predecessors, (52), 48 states have return successors, (94), 51 states have call predecessors, (94), 52 states have call successors, (94) [2022-11-20 11:28:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 550 transitions. [2022-11-20 11:28:26,059 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 550 transitions. Word has length 49 [2022-11-20 11:28:26,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:26,060 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 550 transitions. [2022-11-20 11:28:26,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:28:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 550 transitions. [2022-11-20 11:28:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 11:28:26,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:26,063 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:28:26,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:28:26,063 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:26,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:26,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1623088946, now seen corresponding path program 1 times [2022-11-20 11:28:26,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:26,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224121049] [2022-11-20 11:28:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:26,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:28:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:28:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:28:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:28:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:28:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,235 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 11:28:26,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:26,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224121049] [2022-11-20 11:28:26,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224121049] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:28:26,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992359686] [2022-11-20 11:28:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:26,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:28:26,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:28:26,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:28:26,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:28:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:26,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:28:26,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:28:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:28:26,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:28:26,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992359686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:26,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:28:26,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2022-11-20 11:28:26,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471506050] [2022-11-20 11:28:26,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:26,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:28:26,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:28:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:28:26,548 INFO L87 Difference]: Start difference. First operand 431 states and 550 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 11:28:26,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:26,643 INFO L93 Difference]: Finished difference Result 756 states and 980 transitions. [2022-11-20 11:28:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:28:26,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2022-11-20 11:28:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:26,670 INFO L225 Difference]: With dead ends: 756 [2022-11-20 11:28:26,671 INFO L226 Difference]: Without dead ends: 382 [2022-11-20 11:28:26,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:28:26,673 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 37 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:26,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 193 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:28:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-20 11:28:26,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2022-11-20 11:28:26,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 292 states have (on average 1.2191780821917808) internal successors, (356), 311 states have internal predecessors, (356), 47 states have call successors, (47), 37 states have call predecessors, (47), 42 states have return successors, (72), 47 states have call predecessors, (72), 47 states have call successors, (72) [2022-11-20 11:28:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 475 transitions. [2022-11-20 11:28:26,733 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 475 transitions. Word has length 88 [2022-11-20 11:28:26,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:26,734 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 475 transitions. [2022-11-20 11:28:26,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 11:28:26,735 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 475 transitions. [2022-11-20 11:28:26,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:28:26,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:26,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:26,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:28:26,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 11:28:26,945 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:26,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1045609474, now seen corresponding path program 1 times [2022-11-20 11:28:26,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:26,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055004324] [2022-11-20 11:28:26,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:26,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:28:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:28:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:28:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:28:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 11:28:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:28:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:28:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 11:28:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,306 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 11:28:27,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:27,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055004324] [2022-11-20 11:28:27,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055004324] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:28:27,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136479541] [2022-11-20 11:28:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:27,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:28:27,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:28:27,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:28:27,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:28:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:27,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:28:27,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:28:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 11:28:27,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:28:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:28:27,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136479541] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:28:27,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:28:27,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 5] total 17 [2022-11-20 11:28:27,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110035432] [2022-11-20 11:28:27,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:27,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:27,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:27,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:27,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:28:27,919 INFO L87 Difference]: Start difference. First operand 382 states and 475 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:28:28,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:28,124 INFO L93 Difference]: Finished difference Result 1094 states and 1400 transitions. [2022-11-20 11:28:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:28:28,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2022-11-20 11:28:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:28,130 INFO L225 Difference]: With dead ends: 1094 [2022-11-20 11:28:28,130 INFO L226 Difference]: Without dead ends: 720 [2022-11-20 11:28:28,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:28:28,133 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 52 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:28,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 428 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:28:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-11-20 11:28:28,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 646. [2022-11-20 11:28:28,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 488 states have (on average 1.1885245901639345) internal successors, (580), 522 states have internal predecessors, (580), 81 states have call successors, (81), 65 states have call predecessors, (81), 76 states have return successors, (125), 81 states have call predecessors, (125), 81 states have call successors, (125) [2022-11-20 11:28:28,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 786 transitions. [2022-11-20 11:28:28,238 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 786 transitions. Word has length 93 [2022-11-20 11:28:28,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:28,239 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 786 transitions. [2022-11-20 11:28:28,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:28:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 786 transitions. [2022-11-20 11:28:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-20 11:28:28,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:28,249 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:28,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:28:28,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 11:28:28,457 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:28:28,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash 429876390, now seen corresponding path program 1 times [2022-11-20 11:28:28,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:28,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988789428] [2022-11-20 11:28:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:28,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:28:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:28:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:28:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:28:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:28:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:28:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 11:28:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:28:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:28:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,843 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 11:28:28,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:28,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988789428] [2022-11-20 11:28:28,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988789428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:28:28,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174971320] [2022-11-20 11:28:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:28,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:28:28,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:28:28,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:28:28,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:28:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:28,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:28:29,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:28:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 11:28:29,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:28:29,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174971320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:29,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:28:29,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 20 [2022-11-20 11:28:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434124301] [2022-11-20 11:28:29,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:29,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:28:29,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:29,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:28:29,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:28:29,230 INFO L87 Difference]: Start difference. First operand 646 states and 786 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 11:28:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:29,425 INFO L93 Difference]: Finished difference Result 1174 states and 1422 transitions. [2022-11-20 11:28:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:28:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2022-11-20 11:28:29,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:29,426 INFO L225 Difference]: With dead ends: 1174 [2022-11-20 11:28:29,426 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:28:29,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:28:29,430 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 47 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:29,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 815 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:28:29,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:28:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:28:29,431 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 11:28:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:28:29,432 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2022-11-20 11:28:29,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:29,432 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:28:29,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 11:28:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:28:29,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:28:29,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:28:29,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:28:29,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:28:29,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:28:35,534 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 173 179) no Hoare annotation was computed. [2022-11-20 11:28:35,535 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 173 179) the Hoare annotation is: true [2022-11-20 11:28:35,535 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 526 537) no Hoare annotation was computed. [2022-11-20 11:28:35,536 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 526 537) the Hoare annotation is: (let ((.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (not (<= 1 ~pumpRunning~0))) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 |old(~methaneLevelCritical~0)|))) (.cse7 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse1 .cse7) (or .cse4 .cse6 .cse1 .cse2 .cse7) (or .cse0 .cse5 .cse1 .cse3 .cse7))) [2022-11-20 11:28:35,537 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 526 537) no Hoare annotation was computed. [2022-11-20 11:28:35,538 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 421) no Hoare annotation was computed. [2022-11-20 11:28:35,538 INFO L902 garLoopResultBuilder]: At program point L417-1(lines 417 421) the Hoare annotation is: true [2022-11-20 11:28:35,538 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 403 432) no Hoare annotation was computed. [2022-11-20 11:28:35,538 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-11-20 11:28:35,539 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 403 432) the Hoare annotation is: true [2022-11-20 11:28:35,539 INFO L902 garLoopResultBuilder]: At program point L413-2(lines 413 427) the Hoare annotation is: true [2022-11-20 11:28:35,539 INFO L902 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: true [2022-11-20 11:28:35,539 INFO L899 garLoopResultBuilder]: For program point L409-1(line 409) no Hoare annotation was computed. [2022-11-20 11:28:35,539 INFO L902 garLoopResultBuilder]: At program point L428(lines 403 432) the Hoare annotation is: true [2022-11-20 11:28:35,540 INFO L899 garLoopResultBuilder]: For program point L424(line 424) no Hoare annotation was computed. [2022-11-20 11:28:35,541 INFO L895 garLoopResultBuilder]: At program point L221(line 221) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse4 .cse3) (or .cse2 .cse4 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse5))) [2022-11-20 11:28:35,541 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 510) no Hoare annotation was computed. [2022-11-20 11:28:35,542 INFO L895 garLoopResultBuilder]: At program point L506-2(lines 502 513) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse2 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse6) (or .cse1 .cse2 .cse5 (and .cse4 (= ~methAndRunningLastTime~0 0)) .cse3))) [2022-11-20 11:28:35,542 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 149 172) no Hoare annotation was computed. [2022-11-20 11:28:35,542 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse4) (or .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse5 .cse0 .cse1 .cse6 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse3))) [2022-11-20 11:28:35,546 INFO L895 garLoopResultBuilder]: At program point L226-1(lines 207 231) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= 1 ~systemActive~0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse15 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse10 (and (<= 1 ~pumpRunning~0) .cse2 (<= 2 ~waterLevel~0) .cse15)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse6 .cse7 .cse8 .cse15)) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not .cse8)) (.cse9 (not (<= 1 |old(~pumpRunning~0)|))) (.cse11 (not .cse14)) (.cse13 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse0 .cse7 .cse14 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse8))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse4 (and .cse0 .cse7 .cse8) .cse9 .cse5) (or .cse0 .cse1 .cse4 .cse10 .cse11 .cse12) (or .cse4 .cse9 .cse11 .cse13 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse4 .cse10 .cse5 .cse12) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse11) (or .cse1 .cse4 .cse9 .cse11 .cse13)))) [2022-11-20 11:28:35,547 INFO L895 garLoopResultBuilder]: At program point L255(lines 248 258) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (<= 1 |timeShift_isMethaneAlarm_#res#1|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse6) (or .cse1 .cse2 .cse5 .cse3 (and .cse4 (= ~methAndRunningLastTime~0 0) .cse7)) (or .cse2 .cse5 .cse3 (and .cse4 .cse7) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 11:28:35,547 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 160 166) no Hoare annotation was computed. [2022-11-20 11:28:35,547 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-11-20 11:28:35,547 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 95) no Hoare annotation was computed. [2022-11-20 11:28:35,548 INFO L895 garLoopResultBuilder]: At program point L78-1(lines 70 98) the Hoare annotation is: (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse8 (= 1 ~systemActive~0))) (let ((.cse13 (<= 1 ~pumpRunning~0)) (.cse14 (<= 2 ~waterLevel~0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse9 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse6 .cse7 .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse8)) (.cse0 (not .cse8)) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse10 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse4 .cse8 .cse5)) (or .cse9 .cse0 .cse1 .cse10 (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse11 .cse0 .cse10 (and .cse3 .cse7 .cse4 .cse8 .cse12) (and .cse13 .cse14 .cse8 .cse12)) (or .cse6 .cse11 .cse0 (and .cse13 .cse4 .cse14 .cse8 .cse5 .cse12) .cse2 (and .cse3 .cse7 .cse4 .cse8 .cse5 .cse12)) (or .cse11 .cse9 .cse0 .cse1 .cse10)))) [2022-11-20 11:28:35,548 INFO L895 garLoopResultBuilder]: At program point L264(lines 259 267) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= |timeShift_isPumpRunning_#res#1| 0))) (let ((.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse9 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse10)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse4) (or .cse5 .cse6 .cse0 .cse4) (or .cse5 .cse6 .cse7 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse2) (or .cse6 .cse0 .cse1 .cse2 .cse3) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse5 .cse6 .cse0 (and (<= 1 ~pumpRunning~0) .cse7 (<= 2 ~waterLevel~0) .cse8) .cse2 (and .cse9 .cse10 .cse8)))))) [2022-11-20 11:28:35,548 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 152 171) no Hoare annotation was computed. [2022-11-20 11:28:35,548 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 223) no Hoare annotation was computed. [2022-11-20 11:28:35,549 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-20 11:28:35,549 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 228) no Hoare annotation was computed. [2022-11-20 11:28:35,549 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2022-11-20 11:28:35,549 INFO L895 garLoopResultBuilder]: At program point L253(line 253) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse2 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse6) (or .cse1 .cse2 .cse5 (and .cse4 (= ~methAndRunningLastTime~0 0)) .cse3))) [2022-11-20 11:28:35,550 INFO L899 garLoopResultBuilder]: For program point L253-1(line 253) no Hoare annotation was computed. [2022-11-20 11:28:35,550 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse4 .cse3) (or .cse2 .cse4 .cse5) (or .cse2 .cse4 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 .cse5))) [2022-11-20 11:28:35,551 INFO L895 garLoopResultBuilder]: At program point L245(lines 240 247) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse9 (<= 1 ~methaneLevelCritical~0)) (.cse8 (= 1 ~systemActive~0))) (let ((.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not .cse8)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not .cse9)) (.cse5 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse0 .cse7 .cse9 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse8))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse3 .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 .cse6) (or .cse2 (and .cse0 .cse7 .cse8) .cse4 .cse6) (or .cse1 .cse2 .cse4 .cse3 .cse5)))) [2022-11-20 11:28:35,551 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 149 172) the Hoare annotation is: (let ((.cse9 (= ~methAndRunningLastTime~0 0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and .cse8 .cse10)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse9 .cse10)) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse1 .cse7 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse5 .cse0 .cse6 .cse7) (or (and .cse8 .cse9 .cse10) .cse5 .cse0 .cse1 .cse7)))) [2022-11-20 11:28:35,552 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= 1 ~systemActive~0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse15 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse10 (and (<= 1 ~pumpRunning~0) .cse2 (<= 2 ~waterLevel~0) .cse15)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse6 .cse7 .cse8 .cse15)) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not .cse8)) (.cse9 (not (<= 1 |old(~pumpRunning~0)|))) (.cse11 (not .cse14)) (.cse13 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse0 .cse7 .cse14 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse8))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse4 (and .cse0 .cse7 .cse8) .cse9 .cse5) (or .cse0 .cse1 .cse4 .cse10 .cse11 .cse12) (or .cse4 .cse9 .cse11 .cse13 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse4 .cse10 .cse5 .cse12) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse11) (or .cse1 .cse4 .cse9 .cse11 .cse13)))) [2022-11-20 11:28:35,552 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2022-11-20 11:28:35,552 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 149 172) no Hoare annotation was computed. [2022-11-20 11:28:35,552 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-20 11:28:35,552 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 538 546) the Hoare annotation is: true [2022-11-20 11:28:35,553 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 538 546) no Hoare annotation was computed. [2022-11-20 11:28:35,553 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 538 546) no Hoare annotation was computed. [2022-11-20 11:28:35,553 INFO L895 garLoopResultBuilder]: At program point L118(lines 114 120) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:28:35,553 INFO L902 garLoopResultBuilder]: At program point L494(lines 475 497) the Hoare annotation is: true [2022-11-20 11:28:35,553 INFO L895 garLoopResultBuilder]: At program point L461(lines 457 463) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:28:35,554 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:28:35,554 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2022-11-20 11:28:35,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:28:35,554 INFO L895 garLoopResultBuilder]: At program point L383-2(lines 375 388) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and .cse5 .cse4 .cse1 .cse2 .cse3) (and .cse5 .cse4 .cse6 .cse2 .cse3) (and .cse0 .cse6 .cse2 .cse3))) [2022-11-20 11:28:35,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:28:35,555 INFO L899 garLoopResultBuilder]: For program point L346(lines 345 392) no Hoare annotation was computed. [2022-11-20 11:28:35,555 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 388) no Hoare annotation was computed. [2022-11-20 11:28:35,555 INFO L895 garLoopResultBuilder]: At program point L367(line 367) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse2 .cse3))) [2022-11-20 11:28:35,555 INFO L902 garLoopResultBuilder]: At program point L396(lines 335 400) the Hoare annotation is: true [2022-11-20 11:28:35,555 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 361) no Hoare annotation was computed. [2022-11-20 11:28:35,556 INFO L899 garLoopResultBuilder]: For program point L355-1(lines 355 361) no Hoare annotation was computed. [2022-11-20 11:28:35,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:28:35,556 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2022-11-20 11:28:35,556 INFO L895 garLoopResultBuilder]: At program point L393(lines 344 394) the Hoare annotation is: false [2022-11-20 11:28:35,556 INFO L895 garLoopResultBuilder]: At program point L133(lines 128 136) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:28:35,557 INFO L895 garLoopResultBuilder]: At program point L67(lines 62 69) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:28:35,557 INFO L895 garLoopResultBuilder]: At program point L125(lines 121 127) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:28:35,557 INFO L902 garLoopResultBuilder]: At program point L472(lines 464 474) the Hoare annotation is: true [2022-11-20 11:28:35,557 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 371) no Hoare annotation was computed. [2022-11-20 11:28:35,557 INFO L899 garLoopResultBuilder]: For program point L365-1(lines 365 371) no Hoare annotation was computed. [2022-11-20 11:28:35,558 INFO L895 garLoopResultBuilder]: At program point L328(lines 323 330) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and .cse5 .cse4 .cse1 .cse2 .cse3) (and .cse5 .cse4 .cse6 .cse2 .cse3) (and .cse0 .cse6 .cse2 .cse3))) [2022-11-20 11:28:35,558 INFO L895 garLoopResultBuilder]: At program point L390(lines 345 392) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse2 .cse3))) [2022-11-20 11:28:35,558 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 492) no Hoare annotation was computed. [2022-11-20 11:28:35,559 INFO L895 garLoopResultBuilder]: At program point L357(line 357) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse2 .cse3))) [2022-11-20 11:28:35,559 INFO L899 garLoopResultBuilder]: For program point L485-2(lines 485 492) no Hoare annotation was computed. [2022-11-20 11:28:35,559 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 181 205) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse3 .cse0 .cse1 .cse4) (or .cse2 .cse3 .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse4))) [2022-11-20 11:28:35,559 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 589) no Hoare annotation was computed. [2022-11-20 11:28:35,560 INFO L895 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse5 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not .cse5)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse3 .cse0 .cse1 .cse4) (or .cse2 .cse3 .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse4)))) [2022-11-20 11:28:35,560 INFO L895 garLoopResultBuilder]: At program point L319(lines 304 322) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse7 (= 1 ~systemActive~0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse7)) (.cse3 (and .cse6 (<= 2 ~waterLevel~0))) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) .cse7 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0))) (.cse5 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse3 .cse4 .cse5)))) [2022-11-20 11:28:35,561 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 197) no Hoare annotation was computed. [2022-11-20 11:28:35,562 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 181 205) no Hoare annotation was computed. [2022-11-20 11:28:35,564 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 202) no Hoare annotation was computed. [2022-11-20 11:28:35,564 INFO L899 garLoopResultBuilder]: For program point L313(lines 313 317) no Hoare annotation was computed. [2022-11-20 11:28:35,564 INFO L899 garLoopResultBuilder]: For program point L313-2(lines 313 317) no Hoare annotation was computed. [2022-11-20 11:28:35,564 INFO L895 garLoopResultBuilder]: At program point L237(lines 232 239) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse3 .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse4) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2022-11-20 11:28:35,565 INFO L895 garLoopResultBuilder]: At program point L588(lines 579 592) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (and .cse6 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))) (.cse4 (and .cse6 (<= 2 ~waterLevel~0))) (.cse5 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse0 .cse3 .cse1 .cse4 .cse5) (or .cse2 .cse0 .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5)))) [2022-11-20 11:28:35,565 INFO L895 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse0 .cse1 .cse3) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse3))) [2022-11-20 11:28:35,565 INFO L899 garLoopResultBuilder]: For program point L200-1(lines 181 205) no Hoare annotation was computed. [2022-11-20 11:28:35,566 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 514 525) no Hoare annotation was computed. [2022-11-20 11:28:35,566 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 514 525) no Hoare annotation was computed. [2022-11-20 11:28:35,566 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 514 525) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= 1 ~pumpRunning~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse0 .cse1 .cse3 .cse5) (or .cse0 .cse6 .cse2 .cse3 .cse5) (or .cse4 .cse0 .cse6 .cse3 .cse5))) [2022-11-20 11:28:35,570 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:28:35,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:28:35,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:28:35 BoogieIcfgContainer [2022-11-20 11:28:35,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:28:35,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:28:35,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:28:35,646 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:28:35,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:21" (3/4) ... [2022-11-20 11:28:35,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:28:35,664 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 11:28:35,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 11:28:35,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 11:28:35,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 11:28:35,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-20 11:28:35,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:28:35,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 11:28:35,681 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-20 11:28:35,681 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 11:28:35,682 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:28:35,682 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:28:35,683 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:28:35,716 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(1 <= methaneLevelCritical)) [2022-11-20 11:28:35,717 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) [2022-11-20 11:28:35,719 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == 0)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == 0)) && (((((((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 == systemActive) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || (((1 <= pumpRunning && 2 <= waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(methAndRunningLastTime) == 0) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 == systemActive)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) [2022-11-20 11:28:35,720 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && 1 <= \result))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= \result)) || !(2 <= \old(waterLevel))) [2022-11-20 11:28:35,720 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && pumpRunning == 0) && 1 <= \result) && \result == 0)) || !(2 <= \old(waterLevel))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && pumpRunning == 0) && 1 <= \result) && \result == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) [2022-11-20 11:28:35,721 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) [2022-11-20 11:28:35,721 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || !(methAndRunningLastTime == 0))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || !(methAndRunningLastTime == 0)) [2022-11-20 11:28:35,722 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-20 11:28:35,722 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || !(methAndRunningLastTime == 0)) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || !(methAndRunningLastTime == 0)) [2022-11-20 11:28:35,722 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) [2022-11-20 11:28:35,764 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:28:35,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:28:35,765 INFO L158 Benchmark]: Toolchain (without parser) took 15615.39ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 113.3MB in the beginning and 120.1MB in the end (delta: -6.8MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-11-20 11:28:35,765 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:28:35,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.20ms. Allocated memory is still 146.8MB. Free memory was 112.8MB in the beginning and 94.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:28:35,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.13ms. Allocated memory is still 146.8MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:28:35,767 INFO L158 Benchmark]: Boogie Preprocessor took 37.87ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:28:35,767 INFO L158 Benchmark]: RCFGBuilder took 628.06ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 74.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 11:28:35,768 INFO L158 Benchmark]: TraceAbstraction took 14120.76ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 74.1MB in the beginning and 126.4MB in the end (delta: -52.3MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2022-11-20 11:28:35,768 INFO L158 Benchmark]: Witness Printer took 118.63ms. Allocated memory is still 211.8MB. Free memory was 125.3MB in the beginning and 120.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:28:35,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 631.20ms. Allocated memory is still 146.8MB. Free memory was 112.8MB in the beginning and 94.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.13ms. Allocated memory is still 146.8MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.87ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 628.06ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 74.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14120.76ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 74.1MB in the beginning and 126.4MB in the end (delta: -52.3MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. * Witness Printer took 118.63ms. Allocated memory is still 211.8MB. Free memory was 125.3MB in the beginning and 120.1MB 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 8 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.0s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1118 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1088 mSDsluCounter, 3568 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2334 mSDsCounter, 252 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 899 IncrementalHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 252 mSolverCounterUnsat, 1234 mSDtfsCounter, 899 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 551 GetRequests, 463 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=646occurred in iteration=11, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 161 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 1234 PreInvPairs, 1433 NumberOfFragments, 2681 HoareAnnotationTreeSize, 1234 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 41 FomulaSimplificationsInter, 9984 FormulaSimplificationTreeSizeReductionInter, 5.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 910 NumberOfCodeBlocks, 910 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 987 ConstructedInterpolants, 0 QuantifiedInterpolants, 2036 SizeOfPredicates, 7 NumberOfNonLiveVariables, 988 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 220/242 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: 344]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 464]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 413]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 403]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: ((((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && pumpRunning == 0) && 1 <= \result) && \result == 0)) || !(2 <= \old(waterLevel))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && pumpRunning == 0) && 1 <= \result) && \result == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: ((((((1 <= pumpRunning && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 475]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == 0)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == 0)) && (((((((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 == systemActive) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || (((1 <= pumpRunning && 2 <= waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(methAndRunningLastTime) == 0) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 == systemActive)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive)) - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && 1 <= \result))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || !(methAndRunningLastTime == 0))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: (((((((1 <= pumpRunning && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((1 <= pumpRunning && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || !(methAndRunningLastTime == 0)) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || !(methAndRunningLastTime == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-20 11:28:35,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4d1ccf-ddad-43ad-8eac-831f43a9e5f5/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