./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro --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 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d --- 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-8393723 [2022-11-18 20:04:58,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:04:58,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:04:58,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:04:58,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:04:58,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:04:58,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:04:58,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:04:58,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:04:58,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:04:58,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:04:58,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:04:58,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:04:58,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:04:58,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:04:58,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:04:58,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:04:58,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:04:58,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:04:58,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:04:58,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:04:58,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:04:58,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:04:58,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:04:59,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:04:59,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:04:59,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:04:59,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:04:59,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:04:59,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:04:59,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:04:59,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:04:59,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:04:59,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:04:59,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:04:59,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:04:59,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:04:59,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:04:59,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:04:59,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:04:59,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:04:59,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:04:59,034 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:04:59,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:04:59,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:04:59,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:04:59,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:04:59,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:04:59,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:04:59,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:04:59,037 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:04:59,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:04:59,037 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:04:59,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:04:59,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:04:59,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:04:59,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:04:59,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:04:59,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:04:59,038 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:04:59,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:04:59,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:04:59,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:04:59,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:04:59,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:04:59,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:04:59,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:59,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:04:59,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:04:59,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:04:59,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:04:59,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:04:59,041 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:04:59,041 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:04:59,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:04:59,041 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_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2022-11-18 20:04:59,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:04:59,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:04:59,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:04:59,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:04:59,363 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:04:59,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2022-11-18 20:04:59,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/data/01b2e3b7d/873c855dbf734959bfb829bdae609436/FLAGf1bce37e6 [2022-11-18 20:05:00,012 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:05:00,012 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2022-11-18 20:05:00,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/data/01b2e3b7d/873c855dbf734959bfb829bdae609436/FLAGf1bce37e6 [2022-11-18 20:05:00,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/data/01b2e3b7d/873c855dbf734959bfb829bdae609436 [2022-11-18 20:05:00,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:05:00,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:05:00,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:05:00,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:05:00,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:05:00,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:00,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e36cdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00, skipping insertion in model container [2022-11-18 20:05:00,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:00,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:05:00,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:05:00,794 WARN L234 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_9b5504be-b736-4a51-aecc-9e9555fb7ef3/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2022-11-18 20:05:00,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:05:00,812 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:05:00,911 WARN L234 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_9b5504be-b736-4a51-aecc-9e9555fb7ef3/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2022-11-18 20:05:00,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:05:00,941 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:05:00,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00 WrapperNode [2022-11-18 20:05:00,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:05:00,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:05:00,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:05:00,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:05:00,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:00,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:00,996 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 203 [2022-11-18 20:05:00,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:05:00,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:05:00,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:05:00,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:05:01,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:05:01,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:05:01,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:05:01,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:05:01,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (1/1) ... [2022-11-18 20:05:01,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:05:01,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:01,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:05:01,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:05:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:05:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 20:05:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 20:05:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 20:05:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 20:05:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 20:05:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 20:05:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 20:05:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 20:05:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:05:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:05:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 20:05:01,137 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 20:05:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:05:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 20:05:01,137 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 20:05:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:05:01,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:05:01,252 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:05:01,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:05:01,523 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:05:01,539 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:05:01,539 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:05:01,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:05:01 BoogieIcfgContainer [2022-11-18 20:05:01,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:05:01,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:05:01,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:05:01,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:05:01,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:05:00" (1/3) ... [2022-11-18 20:05:01,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d547a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:05:01, skipping insertion in model container [2022-11-18 20:05:01,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:00" (2/3) ... [2022-11-18 20:05:01,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d547a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:05:01, skipping insertion in model container [2022-11-18 20:05:01,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:05:01" (3/3) ... [2022-11-18 20:05:01,558 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2022-11-18 20:05:01,578 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:05:01,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:05:01,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:05:01,646 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;@4e71d14d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:05:01,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:05:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 20:05:01,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:05:01,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:01,663 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] [2022-11-18 20:05:01,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:01,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1277571174, now seen corresponding path program 1 times [2022-11-18 20:05:01,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:01,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150034437] [2022-11-18 20:05:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:01,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:01,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:05:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:01,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:01,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150034437] [2022-11-18 20:05:01,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150034437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:01,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:01,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:05:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487828278] [2022-11-18 20:05:01,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:01,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:05:01,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:02,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:05:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:05:02,020 INFO L87 Difference]: Start difference. First operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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) [2022-11-18 20:05:02,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:02,102 INFO L93 Difference]: Finished difference Result 167 states and 228 transitions. [2022-11-18 20:05:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:05:02,104 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 [2022-11-18 20:05:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:02,126 INFO L225 Difference]: With dead ends: 167 [2022-11-18 20:05:02,131 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 20:05:02,135 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 [2022-11-18 20:05:02,141 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 [2022-11-18 20:05:02,142 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] [2022-11-18 20:05:02,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 20:05:02,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-18 20:05:02,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 20:05:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2022-11-18 20:05:02,200 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 25 [2022-11-18 20:05:02,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:02,201 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2022-11-18 20:05:02,202 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) [2022-11-18 20:05:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2022-11-18 20:05:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:05:02,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:02,207 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] [2022-11-18 20:05:02,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:05:02,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:02,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash -941221246, now seen corresponding path program 1 times [2022-11-18 20:05:02,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:02,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674678473] [2022-11-18 20:05:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:05:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:02,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:02,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674678473] [2022-11-18 20:05:02,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674678473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:02,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:02,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:05:02,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12630293] [2022-11-18 20:05:02,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:02,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:05:02,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:02,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:05:02,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:05:02,368 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) [2022-11-18 20:05:02,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:02,384 INFO L93 Difference]: Finished difference Result 123 states and 159 transitions. [2022-11-18 20:05:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:05:02,384 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 [2022-11-18 20:05:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:02,386 INFO L225 Difference]: With dead ends: 123 [2022-11-18 20:05:02,386 INFO L226 Difference]: Without dead ends: 70 [2022-11-18 20:05:02,387 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 [2022-11-18 20:05:02,388 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 12 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 162 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 [2022-11-18 20:05:02,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-18 20:05:02,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-18 20:05:02,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 20:05:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-18 20:05:02,397 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 26 [2022-11-18 20:05:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:02,398 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-18 20:05:02,398 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) [2022-11-18 20:05:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-18 20:05:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:05:02,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:02,399 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] [2022-11-18 20:05:02,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:05:02,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:02,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:02,400 INFO L85 PathProgramCache]: Analyzing trace with hash -913943674, now seen corresponding path program 1 times [2022-11-18 20:05:02,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:02,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804103655] [2022-11-18 20:05:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:02,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:02,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804103655] [2022-11-18 20:05:02,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804103655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:02,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:02,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:05:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866832437] [2022-11-18 20:05:02,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:02,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:02,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:02,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:02,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:02,601 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-18 20:05:02,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:02,702 INFO L93 Difference]: Finished difference Result 132 states and 173 transitions. [2022-11-18 20:05:02,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:05:02,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-11-18 20:05:02,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:02,704 INFO L225 Difference]: With dead ends: 132 [2022-11-18 20:05:02,704 INFO L226 Difference]: Without dead ends: 70 [2022-11-18 20:05:02,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:05:02,706 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 176 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:02,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 189 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-18 20:05:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-18 20:05:02,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 20:05:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-11-18 20:05:02,716 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 30 [2022-11-18 20:05:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:02,717 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-11-18 20:05:02,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-18 20:05:02,717 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-11-18 20:05:02,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 20:05:02,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:02,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:02,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:05:02,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:02,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:02,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1798308510, now seen corresponding path program 1 times [2022-11-18 20:05:02,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:02,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513685418] [2022-11-18 20:05:02,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:02,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:05:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:05:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:02,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:02,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513685418] [2022-11-18 20:05:02,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513685418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:02,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:02,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:05:02,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739193918] [2022-11-18 20:05:02,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:02,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:02,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:02,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:02,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:02,846 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2022-11-18 20:05:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:03,138 INFO L93 Difference]: Finished difference Result 206 states and 264 transitions. [2022-11-18 20:05:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 40 [2022-11-18 20:05:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:03,140 INFO L225 Difference]: With dead ends: 206 [2022-11-18 20:05:03,140 INFO L226 Difference]: Without dead ends: 144 [2022-11-18 20:05:03,141 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 [2022-11-18 20:05:03,143 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 167 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:03,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 286 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:05:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-18 20:05:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2022-11-18 20:05:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 114 states have internal predecessors, (138), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2022-11-18 20:05:03,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2022-11-18 20:05:03,174 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 40 [2022-11-18 20:05:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:03,175 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2022-11-18 20:05:03,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2022-11-18 20:05:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2022-11-18 20:05:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:05:03,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:03,177 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] [2022-11-18 20:05:03,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:05:03,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:03,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1579167755, now seen corresponding path program 1 times [2022-11-18 20:05:03,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:03,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642051814] [2022-11-18 20:05:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:03,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:05:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:03,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:03,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642051814] [2022-11-18 20:05:03,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642051814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:03,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:03,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:05:03,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253076163] [2022-11-18 20:05:03,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:03,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:03,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:03,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:03,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:03,404 INFO L87 Difference]: Start difference. First operand 138 states and 171 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-11-18 20:05:03,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:03,591 INFO L93 Difference]: Finished difference Result 276 states and 346 transitions. [2022-11-18 20:05:03,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:03,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 44 [2022-11-18 20:05:03,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:03,593 INFO L225 Difference]: With dead ends: 276 [2022-11-18 20:05:03,594 INFO L226 Difference]: Without dead ends: 146 [2022-11-18 20:05:03,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:05:03,596 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 63 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:03,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 358 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:03,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-18 20:05:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2022-11-18 20:05:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 117 states have internal predecessors, (141), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2022-11-18 20:05:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 174 transitions. [2022-11-18 20:05:03,615 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 174 transitions. Word has length 44 [2022-11-18 20:05:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:03,615 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 174 transitions. [2022-11-18 20:05:03,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-11-18 20:05:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 174 transitions. [2022-11-18 20:05:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:05:03,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:03,617 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] [2022-11-18 20:05:03,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:05:03,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash -109775987, now seen corresponding path program 1 times [2022-11-18 20:05:03,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:03,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181919587] [2022-11-18 20:05:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:03,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:05:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:03,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:03,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181919587] [2022-11-18 20:05:03,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181919587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:03,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:03,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:05:03,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862391269] [2022-11-18 20:05:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:03,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:03,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:03,689 INFO L87 Difference]: Start difference. First operand 141 states and 174 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-18 20:05:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:03,840 INFO L93 Difference]: Finished difference Result 284 states and 357 transitions. [2022-11-18 20:05:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:05:03,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 44 [2022-11-18 20:05:03,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:03,858 INFO L225 Difference]: With dead ends: 284 [2022-11-18 20:05:03,861 INFO L226 Difference]: Without dead ends: 151 [2022-11-18 20:05:03,862 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 [2022-11-18 20:05:03,868 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 65 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:03,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 280 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-18 20:05:03,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2022-11-18 20:05:03,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 119 states have internal predecessors, (143), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2022-11-18 20:05:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2022-11-18 20:05:03,899 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 44 [2022-11-18 20:05:03,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:03,908 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2022-11-18 20:05:03,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-18 20:05:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2022-11-18 20:05:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:05:03,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:03,909 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] [2022-11-18 20:05:03,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:05:03,910 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:03,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash 312925839, now seen corresponding path program 1 times [2022-11-18 20:05:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:03,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098154777] [2022-11-18 20:05:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:03,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:05:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:03,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:03,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098154777] [2022-11-18 20:05:03,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098154777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:03,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:03,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:05:03,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810079554] [2022-11-18 20:05:03,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:03,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:03,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:03,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:03,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:03,989 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-18 20:05:04,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:04,246 INFO L93 Difference]: Finished difference Result 400 states and 514 transitions. [2022-11-18 20:05:04,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:04,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 44 [2022-11-18 20:05:04,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:04,253 INFO L225 Difference]: With dead ends: 400 [2022-11-18 20:05:04,253 INFO L226 Difference]: Without dead ends: 265 [2022-11-18 20:05:04,254 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 [2022-11-18 20:05:04,255 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 200 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:04,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 295 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:05:04,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-18 20:05:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 257. [2022-11-18 20:05:04,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 209 states have internal predecessors, (251), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2022-11-18 20:05:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2022-11-18 20:05:04,288 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 44 [2022-11-18 20:05:04,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:04,289 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2022-11-18 20:05:04,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-18 20:05:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2022-11-18 20:05:04,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-18 20:05:04,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:04,291 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] [2022-11-18 20:05:04,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:05:04,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:04,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:04,292 INFO L85 PathProgramCache]: Analyzing trace with hash 299238822, now seen corresponding path program 1 times [2022-11-18 20:05:04,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:04,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240062127] [2022-11-18 20:05:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:04,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:05:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:05:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:04,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:04,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240062127] [2022-11-18 20:05:04,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240062127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:04,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:04,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:05:04,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7027146] [2022-11-18 20:05:04,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:04,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:04,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:04,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:04,393 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-11-18 20:05:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:04,604 INFO L93 Difference]: Finished difference Result 522 states and 669 transitions. [2022-11-18 20:05:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:05:04,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 46 [2022-11-18 20:05:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:04,607 INFO L225 Difference]: With dead ends: 522 [2022-11-18 20:05:04,608 INFO L226 Difference]: Without dead ends: 273 [2022-11-18 20:05:04,609 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 [2022-11-18 20:05:04,610 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 116 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:04,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 334 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-11-18 20:05:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 253. [2022-11-18 20:05:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 194 states have (on average 1.231958762886598) internal successors, (239), 205 states have internal predecessors, (239), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2022-11-18 20:05:04,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 312 transitions. [2022-11-18 20:05:04,638 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 312 transitions. Word has length 46 [2022-11-18 20:05:04,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:04,639 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 312 transitions. [2022-11-18 20:05:04,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-11-18 20:05:04,639 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 312 transitions. [2022-11-18 20:05:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 20:05:04,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:04,640 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] [2022-11-18 20:05:04,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:05:04,641 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:04,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:04,641 INFO L85 PathProgramCache]: Analyzing trace with hash 657916201, now seen corresponding path program 1 times [2022-11-18 20:05:04,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:04,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835904408] [2022-11-18 20:05:04,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:04,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:05:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:05:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:05:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:04,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:04,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835904408] [2022-11-18 20:05:04,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835904408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:04,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:04,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:05:04,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596625063] [2022-11-18 20:05:04,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:04,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:04,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:04,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:04,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:04,707 INFO L87 Difference]: Start difference. First operand 253 states and 312 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-11-18 20:05:04,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:04,986 INFO L93 Difference]: Finished difference Result 470 states and 595 transitions. [2022-11-18 20:05:04,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:05:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 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 48 [2022-11-18 20:05:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:04,990 INFO L225 Difference]: With dead ends: 470 [2022-11-18 20:05:04,990 INFO L226 Difference]: Without dead ends: 468 [2022-11-18 20:05:04,991 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 [2022-11-18 20:05:04,991 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 279 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:04,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 234 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:05:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-11-18 20:05:05,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 428. [2022-11-18 20:05:05,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 331 states have (on average 1.2356495468277946) internal successors, (409), 352 states have internal predecessors, (409), 48 states have call successors, (48), 42 states have call predecessors, (48), 48 states have return successors, (90), 47 states have call predecessors, (90), 48 states have call successors, (90) [2022-11-18 20:05:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 547 transitions. [2022-11-18 20:05:05,080 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 547 transitions. Word has length 48 [2022-11-18 20:05:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:05,081 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 547 transitions. [2022-11-18 20:05:05,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-11-18 20:05:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 547 transitions. [2022-11-18 20:05:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-18 20:05:05,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:05,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:05,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:05:05,087 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1908194548, now seen corresponding path program 1 times [2022-11-18 20:05:05,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:05,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632907035] [2022-11-18 20:05:05,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:05,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:05:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:05:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 20:05:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:05:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:05:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-18 20:05:05,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:05,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632907035] [2022-11-18 20:05:05,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632907035] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:05,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375629606] [2022-11-18 20:05:05,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:05,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:05,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:05,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:05,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:05:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:05,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:05:05,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:05,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:05:05,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375629606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:05,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:05:05,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2022-11-18 20:05:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364424005] [2022-11-18 20:05:05,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:05,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:05:05,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:05,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:05:05,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:05:05,576 INFO L87 Difference]: Start difference. First operand 428 states and 547 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-11-18 20:05:05,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:05,635 INFO L93 Difference]: Finished difference Result 751 states and 975 transitions. [2022-11-18 20:05:05,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:05:05,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 86 [2022-11-18 20:05:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:05,639 INFO L225 Difference]: With dead ends: 751 [2022-11-18 20:05:05,639 INFO L226 Difference]: Without dead ends: 379 [2022-11-18 20:05:05,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:05:05,641 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 38 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 191 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 [2022-11-18 20:05:05,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 191 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:05,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-18 20:05:05,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-11-18 20:05:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 293 states have (on average 1.2320819112627985) internal successors, (361), 312 states have internal predecessors, (361), 43 states have call successors, (43), 37 states have call predecessors, (43), 42 states have return successors, (68), 43 states have call predecessors, (68), 43 states have call successors, (68) [2022-11-18 20:05:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 472 transitions. [2022-11-18 20:05:05,685 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 472 transitions. Word has length 86 [2022-11-18 20:05:05,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:05,686 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 472 transitions. [2022-11-18 20:05:05,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-11-18 20:05:05,687 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 472 transitions. [2022-11-18 20:05:05,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-18 20:05:05,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:05,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:05,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:05,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:05:05,894 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:05,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1350194604, now seen corresponding path program 1 times [2022-11-18 20:05:05,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:05,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091612512] [2022-11-18 20:05:05,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:05,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:05:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:05:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 20:05:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:05:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:05:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:05:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:05:06,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:06,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091612512] [2022-11-18 20:05:06,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091612512] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:06,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827503058] [2022-11-18 20:05:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:06,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:06,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:06,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:06,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:05:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:05:06,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:06,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:05:06,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827503058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:06,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:05:06,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-18 20:05:06,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822501622] [2022-11-18 20:05:06,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:06,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:06,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:06,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:06,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:05:06,401 INFO L87 Difference]: Start difference. First operand 379 states and 472 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 20:05:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:06,569 INFO L93 Difference]: Finished difference Result 988 states and 1300 transitions. [2022-11-18 20:05:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:06,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 89 [2022-11-18 20:05:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:06,574 INFO L225 Difference]: With dead ends: 988 [2022-11-18 20:05:06,575 INFO L226 Difference]: Without dead ends: 665 [2022-11-18 20:05:06,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:05:06,577 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 169 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:06,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 646 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-11-18 20:05:06,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 538. [2022-11-18 20:05:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 414 states have (on average 1.2318840579710144) internal successors, (510), 440 states have internal predecessors, (510), 62 states have call successors, (62), 55 states have call predecessors, (62), 61 states have return successors, (99), 59 states have call predecessors, (99), 62 states have call successors, (99) [2022-11-18 20:05:06,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 671 transitions. [2022-11-18 20:05:06,682 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 671 transitions. Word has length 89 [2022-11-18 20:05:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:06,682 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 671 transitions. [2022-11-18 20:05:06,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 20:05:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 671 transitions. [2022-11-18 20:05:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-18 20:05:06,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:06,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:06,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:05:06,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:05:06,895 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:06,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1484208110, now seen corresponding path program 1 times [2022-11-18 20:05:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:06,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247973141] [2022-11-18 20:05:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:06,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:05:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:06,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:05:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:05:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:07,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 20:05:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:05:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:05:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:07,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:05:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:05:07,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:07,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247973141] [2022-11-18 20:05:07,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247973141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:07,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808305287] [2022-11-18 20:05:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:07,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:07,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:07,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:07,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:05:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:07,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:05:07,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 20:05:07,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:05:07,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808305287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:07,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:05:07,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-18 20:05:07,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493573543] [2022-11-18 20:05:07,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:07,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:07,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:07,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:07,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:05:07,163 INFO L87 Difference]: Start difference. First operand 538 states and 671 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:05:07,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:07,229 INFO L93 Difference]: Finished difference Result 724 states and 900 transitions. [2022-11-18 20:05:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:05:07,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2022-11-18 20:05:07,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:07,231 INFO L225 Difference]: With dead ends: 724 [2022-11-18 20:05:07,231 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:05:07,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:05:07,233 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 36 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:07,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 315 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:07,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:05:07,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:05:07,234 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) [2022-11-18 20:05:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:05:07,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2022-11-18 20:05:07,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:07,235 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:05:07,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:05:07,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:05:07,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:05:07,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:05:07,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:07,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:07,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:05:10,154 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 400 406) no Hoare annotation was computed. [2022-11-18 20:05:10,154 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 400 406) the Hoare annotation is: true [2022-11-18 20:05:10,154 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 188 199) no Hoare annotation was computed. [2022-11-18 20:05:10,155 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 188 199) the Hoare annotation is: true [2022-11-18 20:05:10,155 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 188 199) no Hoare annotation was computed. [2022-11-18 20:05:10,155 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 200 208) the Hoare annotation is: true [2022-11-18 20:05:10,155 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 200 208) no Hoare annotation was computed. [2022-11-18 20:05:10,155 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 200 208) no Hoare annotation was computed. [2022-11-18 20:05:10,155 INFO L895 garLoopResultBuilder]: At program point L448(line 448) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,155 INFO L899 garLoopResultBuilder]: For program point L940(line 940) no Hoare annotation was computed. [2022-11-18 20:05:10,155 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2022-11-18 20:05:10,156 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 376 399) no Hoare annotation was computed. [2022-11-18 20:05:10,156 INFO L895 garLoopResultBuilder]: At program point L168-2(lines 164 175) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,156 INFO L895 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,156 INFO L895 garLoopResultBuilder]: At program point L453-1(lines 434 458) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 .cse3 (and .cse1 .cse5) .cse0 (and (<= 1 ~pumpRunning~0) .cse4 (<= 2 ~waterLevel~0) .cse5) (not (<= 1 |old(~waterLevel~0)|)))))) [2022-11-18 20:05:10,156 INFO L899 garLoopResultBuilder]: For program point L387-1(lines 387 393) no Hoare annotation was computed. [2022-11-18 20:05:10,156 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 298) no Hoare annotation was computed. [2022-11-18 20:05:10,157 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 301) no Hoare annotation was computed. [2022-11-18 20:05:10,157 INFO L895 garLoopResultBuilder]: At program point L284-1(lines 276 304) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and .cse1 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse3))) (or (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,157 INFO L895 garLoopResultBuilder]: At program point L565(lines 550 568) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,157 INFO L895 garLoopResultBuilder]: At program point L941(lines 936 943) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,158 INFO L895 garLoopResultBuilder]: At program point L491(lines 486 494) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse3 .cse4 .cse0 (and (<= 1 ~pumpRunning~0) .cse5 (<= 2 ~waterLevel~0) .cse6) (not (<= 1 |old(~waterLevel~0)|)) (and .cse1 .cse2 .cse6))) (or .cse3 .cse4 .cse5 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-11-18 20:05:10,158 INFO L895 garLoopResultBuilder]: At program point L260(lines 255 263) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,158 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2022-11-18 20:05:10,158 INFO L899 garLoopResultBuilder]: For program point L380-1(lines 379 398) no Hoare annotation was computed. [2022-11-18 20:05:10,158 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 450) no Hoare annotation was computed. [2022-11-18 20:05:10,158 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 455) no Hoare annotation was computed. [2022-11-18 20:05:10,158 INFO L895 garLoopResultBuilder]: At program point L282(line 282) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 .cse3 (and .cse1 .cse5) .cse0 (and (<= 1 ~pumpRunning~0) .cse4 (<= 2 ~waterLevel~0) .cse5) (not (<= 1 |old(~waterLevel~0)|)))))) [2022-11-18 20:05:10,158 INFO L899 garLoopResultBuilder]: For program point L282-1(line 282) no Hoare annotation was computed. [2022-11-18 20:05:10,164 INFO L895 garLoopResultBuilder]: At program point L472(lines 467 474) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,164 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 376 399) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse2 .cse1 .cse4 (< |old(~waterLevel~0)| 2)) (or .cse1 .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:05:10,165 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2022-11-18 20:05:10,165 INFO L899 garLoopResultBuilder]: For program point L559-2(lines 559 563) no Hoare annotation was computed. [2022-11-18 20:05:10,165 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 376 399) no Hoare annotation was computed. [2022-11-18 20:05:10,165 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 940) no Hoare annotation was computed. [2022-11-18 20:05:10,165 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-18 20:05:10,165 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-18 20:05:10,166 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-11-18 20:05:10,166 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-18 20:05:10,166 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-18 20:05:10,166 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-18 20:05:10,167 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-18 20:05:10,167 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-18 20:05:10,167 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-18 20:05:10,167 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-18 20:05:10,167 INFO L895 garLoopResultBuilder]: At program point L960(lines 956 962) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:05:10,168 INFO L902 garLoopResultBuilder]: At program point L126(lines 118 128) the Hoare annotation is: true [2022-11-18 20:05:10,168 INFO L902 garLoopResultBuilder]: At program point L151(lines 132 154) the Hoare annotation is: true [2022-11-18 20:05:10,168 INFO L895 garLoopResultBuilder]: At program point L362(lines 315 363) the Hoare annotation is: false [2022-11-18 20:05:10,168 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:05:10,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:05:10,169 INFO L899 garLoopResultBuilder]: For program point L317(lines 316 361) no Hoare annotation was computed. [2022-11-18 20:05:10,169 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:05:10,169 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 357) no Hoare annotation was computed. [2022-11-18 20:05:10,169 INFO L895 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-18 20:05:10,169 INFO L895 garLoopResultBuilder]: At program point L359(lines 316 361) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-18 20:05:10,170 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2022-11-18 20:05:10,170 INFO L899 garLoopResultBuilder]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2022-11-18 20:05:10,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:05:10,170 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2022-11-18 20:05:10,170 INFO L895 garLoopResultBuilder]: At program point L273(lines 268 275) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:05:10,170 INFO L895 garLoopResultBuilder]: At program point L975(lines 970 978) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:05:10,171 INFO L895 garLoopResultBuilder]: At program point L967(lines 963 969) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:05:10,171 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 356) no Hoare annotation was computed. [2022-11-18 20:05:10,171 INFO L895 garLoopResultBuilder]: At program point L352-2(lines 346 357) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-18 20:05:10,171 INFO L895 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:05:10,171 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2022-11-18 20:05:10,171 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 336 342) no Hoare annotation was computed. [2022-11-18 20:05:10,172 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2022-11-18 20:05:10,172 INFO L902 garLoopResultBuilder]: At program point L365(lines 306 369) the Hoare annotation is: true [2022-11-18 20:05:10,172 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 142 149) no Hoare annotation was computed. [2022-11-18 20:05:10,172 INFO L895 garLoopResultBuilder]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-18 20:05:10,173 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 408 432) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2) .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-18 20:05:10,173 INFO L895 garLoopResultBuilder]: At program point L250(lines 241 254) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 .cse1 .cse2) (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (<= 1 ~waterLevel~0)) .cse2))) [2022-11-18 20:05:10,173 INFO L895 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-18 20:05:10,189 INFO L895 garLoopResultBuilder]: At program point L546(lines 531 549) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0)) (and .cse0 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (not (= ~methAndRunningLastTime~0 0)))) [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 424) no Hoare annotation was computed. [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 429) no Hoare annotation was computed. [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 408 432) no Hoare annotation was computed. [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 540 544) no Hoare annotation was computed. [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 251) no Hoare annotation was computed. [2022-11-18 20:05:10,190 INFO L895 garLoopResultBuilder]: At program point L464(lines 459 466) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-18 20:05:10,190 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 408 432) no Hoare annotation was computed. [2022-11-18 20:05:10,190 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 176 187) no Hoare annotation was computed. [2022-11-18 20:05:10,191 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 176 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (<= 1 ~pumpRunning~0)) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse1 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-18 20:05:10,191 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 176 187) no Hoare annotation was computed. [2022-11-18 20:05:10,197 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:10,199 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:05:10,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:05:10 BoogieIcfgContainer [2022-11-18 20:05:10,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:05:10,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:05:10,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:05:10,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:05:10,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:05:01" (3/4) ... [2022-11-18 20:05:10,251 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:05:10,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-18 20:05:10,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-18 20:05:10,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-18 20:05:10,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-18 20:05:10,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-18 20:05:10,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:05:10,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-18 20:05:10,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-18 20:05:10,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 20:05:10,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:05:10,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:05:10,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:05:10,301 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-18 20:05:10,301 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-18 20:05:10,301 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-18 20:05:10,302 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || (((((1 <= pumpRunning && tmp == systemActive) && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) [2022-11-18 20:05:10,303 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-18 20:05:10,304 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) [2022-11-18 20:05:10,305 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) && ((((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) [2022-11-18 20:05:10,306 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-18 20:05:10,306 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-18 20:05:10,306 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel == 1) || 1 <= \result) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0)) [2022-11-18 20:05:10,307 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) [2022-11-18 20:05:10,307 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) [2022-11-18 20:05:10,307 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || !(methAndRunningLastTime == 0) [2022-11-18 20:05:10,308 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) [2022-11-18 20:05:10,308 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0) [2022-11-18 20:05:10,350 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:05:10,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:05:10,351 INFO L158 Benchmark]: Toolchain (without parser) took 10005.90ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 84.4MB in the beginning and 183.4MB in the end (delta: -99.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:05:10,351 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 123.7MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:05:10,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.57ms. Allocated memory is still 123.7MB. Free memory was 84.2MB in the beginning and 90.9MB in the end (delta: -6.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:05:10,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.64ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:05:10,353 INFO L158 Benchmark]: Boogie Preprocessor took 37.20ms. Allocated memory is still 123.7MB. Free memory was 88.8MB in the beginning and 87.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:05:10,353 INFO L158 Benchmark]: RCFGBuilder took 507.62ms. Allocated memory is still 123.7MB. Free memory was 87.3MB in the beginning and 70.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:05:10,354 INFO L158 Benchmark]: TraceAbstraction took 8700.96ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 70.0MB in the beginning and 188.7MB in the end (delta: -118.7MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. [2022-11-18 20:05:10,354 INFO L158 Benchmark]: Witness Printer took 103.91ms. Allocated memory is still 218.1MB. Free memory was 188.7MB in the beginning and 183.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:05:10,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 123.7MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.57ms. Allocated memory is still 123.7MB. Free memory was 84.2MB in the beginning and 90.9MB in the end (delta: -6.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.64ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.20ms. Allocated memory is still 123.7MB. Free memory was 88.8MB in the beginning and 87.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 507.62ms. Allocated memory is still 123.7MB. Free memory was 87.3MB in the beginning and 70.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8700.96ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 70.0MB in the beginning and 188.7MB in the end (delta: -118.7MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. * Witness Printer took 103.91ms. Allocated memory is still 218.1MB. Free memory was 188.7MB in the beginning and 183.4MB 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: 940]: 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: 8.6s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1346 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1321 mSDsluCounter, 3401 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2173 mSDsCounter, 272 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 272 mSolverCounterUnsat, 1228 mSDtfsCounter, 862 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 433 GetRequests, 352 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=538occurred in iteration=11, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 214 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 992 PreInvPairs, 1076 NumberOfFragments, 1247 HoareAnnotationTreeSize, 992 FomulaSimplifications, 230 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 40 FomulaSimplificationsInter, 4722 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 875 NumberOfCodeBlocks, 875 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 860 ConstructedInterpolants, 0 QuantifiedInterpolants, 1504 SizeOfPredicates, 8 NumberOfNonLiveVariables, 959 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 171/178 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: 531]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 276]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) && ((((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || (((((1 <= pumpRunning && tmp == systemActive) && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 963]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 970]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: ((((!(waterLevel == 1) || 1 <= \result) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:05:10,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5504be-b736-4a51-aecc-9e9555fb7ef3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE