./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/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_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/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_798c1290-f413-4075-ae69-4119c46d0438/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 cb82edc0720115a7daf634e8ab19e02bd974ec3bbe9487e9c9b9a9d3ab6ca10d --- 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 21:03:21,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:03:21,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:03:21,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:03:21,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:03:21,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:03:21,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:03:21,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:03:21,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:03:21,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:03:21,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:03:21,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:03:21,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:03:21,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:03:21,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:03:21,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:03:21,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:03:21,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:03:21,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:03:21,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:03:21,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:03:21,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:03:21,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:03:21,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:03:21,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:03:21,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:03:21,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:03:21,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:03:21,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:03:21,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:03:21,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:03:21,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:03:21,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:03:21,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:03:21,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:03:21,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:03:21,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:03:21,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:03:21,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:03:21,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:03:21,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:03:21,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 21:03:21,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:03:21,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:03:21,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:03:21,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:03:21,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:03:21,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:03:21,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:03:21,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:03:21,427 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:03:21,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:03:21,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:03:21,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:03:21,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:03:21,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:03:21,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:03:21,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:03:21,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:03:21,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:03:21,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:03:21,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:03:21,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:03:21,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:03:21,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:03:21,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:03:21,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:03:21,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:03:21,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:03:21,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:03:21,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:03:21,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:03:21,436 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:03:21,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:03:21,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:03:21,437 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_798c1290-f413-4075-ae69-4119c46d0438/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb82edc0720115a7daf634e8ab19e02bd974ec3bbe9487e9c9b9a9d3ab6ca10d [2022-11-18 21:03:21,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:03:21,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:03:21,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:03:21,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:03:21,884 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:03:21,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2022-11-18 21:03:21,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/data/fae0e3287/f19791f8992d49f4a6366dec2796a898/FLAG6a9f42d03 [2022-11-18 21:03:22,710 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:03:22,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2022-11-18 21:03:22,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/data/fae0e3287/f19791f8992d49f4a6366dec2796a898/FLAG6a9f42d03 [2022-11-18 21:03:22,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/data/fae0e3287/f19791f8992d49f4a6366dec2796a898 [2022-11-18 21:03:22,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:03:22,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:03:22,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:03:22,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:03:22,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:03:22,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:03:22" (1/1) ... [2022-11-18 21:03:22,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d97ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:22, skipping insertion in model container [2022-11-18 21:03:22,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:03:22" (1/1) ... [2022-11-18 21:03:22,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:03:23,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:03:23,456 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_798c1290-f413-4075-ae69-4119c46d0438/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6627,6640] [2022-11-18 21:03:23,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:03:23,580 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:03:23,627 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_798c1290-f413-4075-ae69-4119c46d0438/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6627,6640] [2022-11-18 21:03:23,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:03:23,723 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:03:23,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23 WrapperNode [2022-11-18 21:03:23,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:03:23,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:03:23,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:03:23,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:03:23,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,777 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 177 [2022-11-18 21:03:23,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:03:23,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:03:23,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:03:23,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:03:23,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:03:23,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:03:23,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:03:23,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:03:23,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (1/1) ... [2022-11-18 21:03:23,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:03:23,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:03:23,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:03:23,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:03:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:03:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 21:03:23,893 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 21:03:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 21:03:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 21:03:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 21:03:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 21:03:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 21:03:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 21:03:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:03:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 21:03:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 21:03:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:03:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:03:23,985 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:03:23,988 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:03:24,412 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:03:24,421 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:03:24,427 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 21:03:24,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:03:24 BoogieIcfgContainer [2022-11-18 21:03:24,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:03:24,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:03:24,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:03:24,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:03:24,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:03:22" (1/3) ... [2022-11-18 21:03:24,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18662aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:03:24, skipping insertion in model container [2022-11-18 21:03:24,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:23" (2/3) ... [2022-11-18 21:03:24,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18662aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:03:24, skipping insertion in model container [2022-11-18 21:03:24,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:03:24" (3/3) ... [2022-11-18 21:03:24,457 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2022-11-18 21:03:24,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:03:24,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:03:24,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:03:24,604 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;@4b22bf17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:03:24,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:03:24,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 60 states have (on average 1.4) internal successors, (84), 66 states have internal predecessors, (84), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 21:03:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 21:03:24,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:24,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:24,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:24,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:24,627 INFO L85 PathProgramCache]: Analyzing trace with hash 333655523, now seen corresponding path program 1 times [2022-11-18 21:03:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:24,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905242631] [2022-11-18 21:03:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:24,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:24,925 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 21:03:24,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:24,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905242631] [2022-11-18 21:03:24,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905242631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:24,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:24,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:03:24,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133621533] [2022-11-18 21:03:24,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:24,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:03:24,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:24,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:03:24,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:03:24,988 INFO L87 Difference]: Start difference. First operand has 75 states, 60 states have (on average 1.4) internal successors, (84), 66 states have internal predecessors, (84), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:25,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:25,041 INFO L93 Difference]: Finished difference Result 142 states and 195 transitions. [2022-11-18 21:03:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:03:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-18 21:03:25,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:25,056 INFO L225 Difference]: With dead ends: 142 [2022-11-18 21:03:25,056 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 21:03:25,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:03:25,066 INFO L413 NwaCegarLoop]: 94 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, 94 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 21:03:25,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:25,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 21:03:25,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-18 21:03:25,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.320754716981132) internal successors, (70), 58 states have internal predecessors, (70), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 21:03:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-11-18 21:03:25,117 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 19 [2022-11-18 21:03:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:25,117 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-11-18 21:03:25,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:25,118 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2022-11-18 21:03:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 21:03:25,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:25,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:25,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:03:25,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:25,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1907368950, now seen corresponding path program 1 times [2022-11-18 21:03:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:25,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964451507] [2022-11-18 21:03:25,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:25,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:25,236 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 21:03:25,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:25,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964451507] [2022-11-18 21:03:25,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964451507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:25,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:25,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:03:25,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220858839] [2022-11-18 21:03:25,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:25,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:03:25,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:25,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:03:25,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:03:25,241 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:25,261 INFO L93 Difference]: Finished difference Result 93 states and 120 transitions. [2022-11-18 21:03:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:03:25,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-18 21:03:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:25,263 INFO L225 Difference]: With dead ends: 93 [2022-11-18 21:03:25,263 INFO L226 Difference]: Without dead ends: 57 [2022-11-18 21:03:25,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:03:25,266 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 18 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 122 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 21:03:25,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:25,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-18 21:03:25,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-18 21:03:25,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 52 states have internal predecessors, (63), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 21:03:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2022-11-18 21:03:25,284 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 20 [2022-11-18 21:03:25,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:25,285 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2022-11-18 21:03:25,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2022-11-18 21:03:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 21:03:25,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:25,290 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 21:03:25,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:03:25,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:25,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:25,298 INFO L85 PathProgramCache]: Analyzing trace with hash 75787182, now seen corresponding path program 1 times [2022-11-18 21:03:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:25,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639922438] [2022-11-18 21:03:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:25,471 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 21:03:25,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:25,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639922438] [2022-11-18 21:03:25,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639922438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:25,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:25,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:03:25,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145956897] [2022-11-18 21:03:25,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:25,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:03:25,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:25,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:03:25,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:03:25,482 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:25,682 INFO L93 Difference]: Finished difference Result 142 states and 187 transitions. [2022-11-18 21:03:25,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:03:25,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 21:03:25,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:25,688 INFO L225 Difference]: With dead ends: 142 [2022-11-18 21:03:25,690 INFO L226 Difference]: Without dead ends: 92 [2022-11-18 21:03:25,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:03:25,693 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 141 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:25,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 236 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-18 21:03:25,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87. [2022-11-18 21:03:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 78 states have internal predecessors, (97), 8 states have call successors, (8), 7 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-18 21:03:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2022-11-18 21:03:25,735 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 25 [2022-11-18 21:03:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:25,736 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2022-11-18 21:03:25,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2022-11-18 21:03:25,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 21:03:25,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:25,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:25,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:03:25,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1851583277, now seen corresponding path program 1 times [2022-11-18 21:03:25,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:25,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393209981] [2022-11-18 21:03:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:25,927 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 21:03:25,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:25,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393209981] [2022-11-18 21:03:25,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393209981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:25,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:25,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:03:25,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625367977] [2022-11-18 21:03:25,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:25,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:03:25,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:25,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:03:25,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:03:25,929 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:26,086 INFO L93 Difference]: Finished difference Result 235 states and 325 transitions. [2022-11-18 21:03:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:03:26,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-18 21:03:26,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:26,089 INFO L225 Difference]: With dead ends: 235 [2022-11-18 21:03:26,090 INFO L226 Difference]: Without dead ends: 155 [2022-11-18 21:03:26,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:03:26,093 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 44 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:26,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 277 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:26,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-18 21:03:26,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-18 21:03:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 126 states have (on average 1.3412698412698412) internal successors, (169), 137 states have internal predecessors, (169), 16 states have call successors, (16), 14 states have call predecessors, (16), 12 states have return successors, (21), 12 states have call predecessors, (21), 16 states have call successors, (21) [2022-11-18 21:03:26,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 206 transitions. [2022-11-18 21:03:26,127 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 206 transitions. Word has length 28 [2022-11-18 21:03:26,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:26,127 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 206 transitions. [2022-11-18 21:03:26,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:26,128 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 206 transitions. [2022-11-18 21:03:26,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 21:03:26,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:26,130 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 21:03:26,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:03:26,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:26,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:26,132 INFO L85 PathProgramCache]: Analyzing trace with hash 983875416, now seen corresponding path program 1 times [2022-11-18 21:03:26,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:26,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622455508] [2022-11-18 21:03:26,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:26,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:26,207 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 21:03:26,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:26,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622455508] [2022-11-18 21:03:26,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622455508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:26,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:26,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:03:26,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784635041] [2022-11-18 21:03:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:26,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:03:26,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:03:26,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:03:26,211 INFO L87 Difference]: Start difference. First operand 155 states and 206 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:26,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:26,260 INFO L93 Difference]: Finished difference Result 361 states and 493 transitions. [2022-11-18 21:03:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:03:26,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-18 21:03:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:26,264 INFO L225 Difference]: With dead ends: 361 [2022-11-18 21:03:26,264 INFO L226 Difference]: Without dead ends: 213 [2022-11-18 21:03:26,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:03:26,267 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 44 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:26,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 119 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-11-18 21:03:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211. [2022-11-18 21:03:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 171 states have (on average 1.304093567251462) internal successors, (223), 182 states have internal predecessors, (223), 21 states have call successors, (21), 21 states have call predecessors, (21), 18 states have return successors, (31), 18 states have call predecessors, (31), 21 states have call successors, (31) [2022-11-18 21:03:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 275 transitions. [2022-11-18 21:03:26,309 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 275 transitions. Word has length 30 [2022-11-18 21:03:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:26,309 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 275 transitions. [2022-11-18 21:03:26,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 275 transitions. [2022-11-18 21:03:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 21:03:26,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:26,312 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] [2022-11-18 21:03:26,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:03:26,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:26,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:26,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2061828423, now seen corresponding path program 1 times [2022-11-18 21:03:26,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:26,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279544952] [2022-11-18 21:03:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:26,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:26,434 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 21:03:26,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:26,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279544952] [2022-11-18 21:03:26,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279544952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:26,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:26,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:03:26,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245909603] [2022-11-18 21:03:26,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:26,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:03:26,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:26,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:03:26,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:03:26,438 INFO L87 Difference]: Start difference. First operand 211 states and 275 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:26,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:26,699 INFO L93 Difference]: Finished difference Result 266 states and 344 transitions. [2022-11-18 21:03:26,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:03:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-18 21:03:26,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:26,703 INFO L225 Difference]: With dead ends: 266 [2022-11-18 21:03:26,703 INFO L226 Difference]: Without dead ends: 264 [2022-11-18 21:03:26,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 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 21:03:26,705 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 116 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:26,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 325 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:03:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-18 21:03:26,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 247. [2022-11-18 21:03:26,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 200 states have (on average 1.285) internal successors, (257), 217 states have internal predecessors, (257), 23 states have call successors, (23), 21 states have call predecessors, (23), 23 states have return successors, (38), 20 states have call predecessors, (38), 23 states have call successors, (38) [2022-11-18 21:03:26,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 318 transitions. [2022-11-18 21:03:26,753 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 318 transitions. Word has length 32 [2022-11-18 21:03:26,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:26,754 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 318 transitions. [2022-11-18 21:03:26,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 318 transitions. [2022-11-18 21:03:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 21:03:26,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:26,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:26,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:03:26,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1259749296, now seen corresponding path program 1 times [2022-11-18 21:03:26,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:26,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136156457] [2022-11-18 21:03:26,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:26,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:26,838 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 21:03:26,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:26,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136156457] [2022-11-18 21:03:26,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136156457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:26,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:26,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:03:26,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769248766] [2022-11-18 21:03:26,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:26,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:03:26,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:26,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:03:26,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:03:26,842 INFO L87 Difference]: Start difference. First operand 247 states and 318 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:27,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:27,028 INFO L93 Difference]: Finished difference Result 543 states and 716 transitions. [2022-11-18 21:03:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:03:27,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-18 21:03:27,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:27,037 INFO L225 Difference]: With dead ends: 543 [2022-11-18 21:03:27,037 INFO L226 Difference]: Without dead ends: 303 [2022-11-18 21:03:27,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:03:27,046 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:27,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 255 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:27,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-11-18 21:03:27,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 251. [2022-11-18 21:03:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 204 states have (on average 1.2745098039215685) internal successors, (260), 221 states have internal predecessors, (260), 23 states have call successors, (23), 21 states have call predecessors, (23), 23 states have return successors, (38), 20 states have call predecessors, (38), 23 states have call successors, (38) [2022-11-18 21:03:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 321 transitions. [2022-11-18 21:03:27,108 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 321 transitions. Word has length 38 [2022-11-18 21:03:27,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:27,111 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 321 transitions. [2022-11-18 21:03:27,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:27,112 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 321 transitions. [2022-11-18 21:03:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 21:03:27,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:27,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:27,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:03:27,118 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:27,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1001583858, now seen corresponding path program 1 times [2022-11-18 21:03:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:27,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050691145] [2022-11-18 21:03:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:27,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:27,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:27,263 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 21:03:27,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:27,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050691145] [2022-11-18 21:03:27,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050691145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:27,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:27,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:03:27,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553142878] [2022-11-18 21:03:27,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:27,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:03:27,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:03:27,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:03:27,270 INFO L87 Difference]: Start difference. First operand 251 states and 321 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:27,472 INFO L93 Difference]: Finished difference Result 494 states and 634 transitions. [2022-11-18 21:03:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:03:27,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-18 21:03:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:27,477 INFO L225 Difference]: With dead ends: 494 [2022-11-18 21:03:27,477 INFO L226 Difference]: Without dead ends: 250 [2022-11-18 21:03:27,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 21:03:27,487 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 111 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:27,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 337 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-18 21:03:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 226. [2022-11-18 21:03:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 185 states have (on average 1.2594594594594595) internal successors, (233), 200 states have internal predecessors, (233), 20 states have call successors, (20), 18 states have call predecessors, (20), 20 states have return successors, (29), 18 states have call predecessors, (29), 20 states have call successors, (29) [2022-11-18 21:03:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 282 transitions. [2022-11-18 21:03:27,531 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 282 transitions. Word has length 38 [2022-11-18 21:03:27,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:27,533 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 282 transitions. [2022-11-18 21:03:27,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 282 transitions. [2022-11-18 21:03:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 21:03:27,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:27,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:27,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:03:27,537 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:27,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:27,539 INFO L85 PathProgramCache]: Analyzing trace with hash 248632046, now seen corresponding path program 1 times [2022-11-18 21:03:27,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:27,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969942945] [2022-11-18 21:03:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:27,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:27,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:27,715 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 21:03:27,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:27,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969942945] [2022-11-18 21:03:27,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969942945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:27,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:27,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:03:27,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575813095] [2022-11-18 21:03:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:27,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:03:27,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:03:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:03:27,717 INFO L87 Difference]: Start difference. First operand 226 states and 282 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:27,963 INFO L93 Difference]: Finished difference Result 493 states and 654 transitions. [2022-11-18 21:03:27,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 21:03:27,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-18 21:03:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:27,967 INFO L225 Difference]: With dead ends: 493 [2022-11-18 21:03:27,967 INFO L226 Difference]: Without dead ends: 337 [2022-11-18 21:03:27,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-18 21:03:27,969 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 97 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:27,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 427 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-18 21:03:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2022-11-18 21:03:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 273 states have (on average 1.2417582417582418) internal successors, (339), 292 states have internal predecessors, (339), 31 states have call successors, (31), 28 states have call predecessors, (31), 30 states have return successors, (55), 29 states have call predecessors, (55), 31 states have call successors, (55) [2022-11-18 21:03:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 425 transitions. [2022-11-18 21:03:28,025 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 425 transitions. Word has length 38 [2022-11-18 21:03:28,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:28,026 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 425 transitions. [2022-11-18 21:03:28,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:03:28,026 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 425 transitions. [2022-11-18 21:03:28,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 21:03:28,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:28,028 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 21:03:28,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:03:28,029 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:28,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:28,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1339398285, now seen corresponding path program 1 times [2022-11-18 21:03:28,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:28,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196676373] [2022-11-18 21:03:28,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:28,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:28,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 21:03:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:03:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:03:28,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:28,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196676373] [2022-11-18 21:03:28,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196676373] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:03:28,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249997266] [2022-11-18 21:03:28,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:28,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:03:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:03:28,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:03:28,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:03:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:28,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 21:03:28,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:03:28,525 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:03:28,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:03:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:03:28,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249997266] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:03:28,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:03:28,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 8 [2022-11-18 21:03:28,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245956246] [2022-11-18 21:03:28,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:03:28,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:03:28,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:03:28,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:03:28,690 INFO L87 Difference]: Start difference. First operand 335 states and 425 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 21:03:29,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:29,252 INFO L93 Difference]: Finished difference Result 776 states and 1034 transitions. [2022-11-18 21:03:29,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 21:03:29,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2022-11-18 21:03:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:29,259 INFO L225 Difference]: With dead ends: 776 [2022-11-18 21:03:29,259 INFO L226 Difference]: Without dead ends: 511 [2022-11-18 21:03:29,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 127 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-11-18 21:03:29,262 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 189 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:29,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 535 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:03:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-11-18 21:03:29,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 452. [2022-11-18 21:03:29,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 366 states have (on average 1.2459016393442623) internal successors, (456), 392 states have internal predecessors, (456), 43 states have call successors, (43), 39 states have call predecessors, (43), 42 states have return successors, (81), 38 states have call predecessors, (81), 43 states have call successors, (81) [2022-11-18 21:03:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 580 transitions. [2022-11-18 21:03:29,324 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 580 transitions. Word has length 63 [2022-11-18 21:03:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:29,328 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 580 transitions. [2022-11-18 21:03:29,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 21:03:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 580 transitions. [2022-11-18 21:03:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-18 21:03:29,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:29,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 21:03:29,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:03:29,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:03:29,537 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:29,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:29,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1539867278, now seen corresponding path program 2 times [2022-11-18 21:03:29,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:29,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436923829] [2022-11-18 21:03:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:29,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:03:29,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:03:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:03:29,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:03:29,632 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:03:29,633 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:03:29,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:03:29,639 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:29,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:03:29,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:03:29 BoogieIcfgContainer [2022-11-18 21:03:29,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:03:29,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:03:29,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:03:29,753 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:03:29,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:03:24" (3/4) ... [2022-11-18 21:03:29,756 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 21:03:29,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:03:29,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:03:29,828 INFO L158 Benchmark]: Toolchain (without parser) took 6865.66ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 93.3MB in the beginning and 101.3MB in the end (delta: -8.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-18 21:03:29,828 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:03:29,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.86ms. Allocated memory is still 127.9MB. Free memory was 93.0MB in the beginning and 93.4MB in the end (delta: -428.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:03:29,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.13ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:03:29,829 INFO L158 Benchmark]: Boogie Preprocessor took 32.27ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 90.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:03:29,830 INFO L158 Benchmark]: RCFGBuilder took 633.98ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 74.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 21:03:29,830 INFO L158 Benchmark]: TraceAbstraction took 5303.83ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 74.5MB in the beginning and 108.7MB in the end (delta: -34.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-11-18 21:03:29,831 INFO L158 Benchmark]: Witness Printer took 74.29ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 101.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 21:03:29,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.86ms. Allocated memory is still 127.9MB. Free memory was 93.0MB in the beginning and 93.4MB in the end (delta: -428.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.13ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.27ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 90.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.98ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 74.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5303.83ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 74.5MB in the beginning and 108.7MB in the end (delta: -34.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Witness Printer took 74.29ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 101.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 447]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L621] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L820] int methaneLevelCritical = 0; [L133] int pumpRunning = 0; [L819] int waterLevel = 1; [L134] int systemActive = 1; [L309] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L385] int retValue_acc ; [L386] int tmp ; [L390] FCALL select_helpers() [L391] FCALL select_features() [L392] CALL, EXPR valid_product() [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L392] RET, EXPR valid_product() [L392] tmp = valid_product() [L394] COND TRUE \read(tmp) [L396] FCALL setup() [L397] CALL runTest() [L376] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L78] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] COND TRUE waterLevel < 2 [L838] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L78] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L304] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L98] RET startSystem() [L113] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L141] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L148] COND TRUE \read(systemActive) [L150] CALL processEnvironment() [L170] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L173] COND TRUE ! pumpRunning [L175] CALL, EXPR isHighWaterLevel() [L267] int retValue_acc ; [L268] int tmp ; [L269] int tmp___0 ; [L273] CALL, EXPR isHighWaterSensorDry() [L899] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L902] COND FALSE !(waterLevel < 2) [L906] retValue_acc = 0 [L907] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L273] RET, EXPR isHighWaterSensorDry() [L273] tmp = isHighWaterSensorDry() [L275] COND FALSE !(\read(tmp)) [L278] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L280] retValue_acc = tmp___0 [L281] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L175] RET, EXPR isHighWaterLevel() [L175] tmp = isHighWaterLevel() [L177] COND TRUE \read(tmp) [L179] CALL activatePump() [L198] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L179] RET activatePump() [L150] RET processEnvironment() [L156] CALL __utac_acc__Specification4_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L919] CALL, EXPR getWaterLevel() [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L919] RET, EXPR getWaterLevel() [L919] tmp = getWaterLevel() [L921] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L156] RET __utac_acc__Specification4_spec__1() [L113] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L66] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L68] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L304] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L98] RET startSystem() [L113] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L141] COND TRUE \read(pumpRunning) [L143] CALL lowerWaterLevel() [L825] COND TRUE waterLevel > 0 [L826] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L143] RET lowerWaterLevel() [L148] COND TRUE \read(systemActive) [L150] CALL processEnvironment() [L170] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L173] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L188] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L150] RET processEnvironment() [L156] CALL __utac_acc__Specification4_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L919] CALL, EXPR getWaterLevel() [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L919] RET, EXPR getWaterLevel() [L919] tmp = getWaterLevel() [L921] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L156] RET __utac_acc__Specification4_spec__1() [L113] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L66] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L304] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L98] RET startSystem() [L113] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L141] COND TRUE \read(pumpRunning) [L143] CALL lowerWaterLevel() [L825] COND TRUE waterLevel > 0 [L826] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L143] RET lowerWaterLevel() [L148] COND TRUE \read(systemActive) [L150] CALL processEnvironment() [L170] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L173] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L188] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L150] RET processEnvironment() [L156] CALL __utac_acc__Specification4_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L919] CALL, EXPR getWaterLevel() [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L919] RET, EXPR getWaterLevel() [L919] tmp = getWaterLevel() [L921] COND TRUE tmp == 0 [L923] CALL, EXPR isPumpRunning() [L222] int retValue_acc ; [L225] retValue_acc = pumpRunning [L226] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L923] RET, EXPR isPumpRunning() [L923] tmp___0 = isPumpRunning() [L925] COND TRUE \read(tmp___0) [L927] CALL __automaton_fail() [L447] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 895 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 875 mSDsluCounter, 2727 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1906 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 696 IncrementalHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 821 mSDtfsCounter, 696 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 154 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=452occurred in iteration=10, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 161 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 445 ConstructedInterpolants, 0 QuantifiedInterpolants, 855 SizeOfPredicates, 4 NumberOfNonLiveVariables, 247 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 38/51 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-18 21:03:29,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c1290-f413-4075-ae69-4119c46d0438/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE