./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8 --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 1849026681bb840017399851b7fbd7074a9bb56e2104927ac4a62c52d8de2e86 --- 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-e04fb08 [2022-11-16 11:23:42,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:23:42,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:23:42,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:23:42,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:23:42,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:23:42,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:23:42,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:23:42,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:23:42,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:23:42,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:23:42,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:23:42,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:23:42,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:23:42,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:23:42,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:23:42,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:23:42,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:23:42,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:23:42,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:23:42,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:23:42,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:23:42,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:23:42,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:23:42,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:23:42,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:23:42,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:23:42,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:23:42,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:23:42,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:23:42,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:23:42,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:23:42,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:23:42,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:23:42,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:23:42,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:23:42,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:23:42,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:23:42,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:23:42,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:23:42,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:23:42,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:23:42,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:23:42,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:23:42,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:23:42,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:23:42,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:23:42,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:23:42,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:23:42,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:23:42,435 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:23:42,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:23:42,441 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:23:42,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:23:42,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:23:42,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:23:42,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:23:42,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:23:42,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:23:42,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:23:42,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:23:42,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:23:42,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:23:42,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:23:42,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:23:42,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:23:42,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:23:42,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:23:42,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:23:42,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:23:42,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:23:42,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:23:42,449 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:23:42,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:23:42,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:23:42,451 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_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1849026681bb840017399851b7fbd7074a9bb56e2104927ac4a62c52d8de2e86 [2022-11-16 11:23:42,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:23:42,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:23:42,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:23:42,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:23:42,871 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:23:42,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2022-11-16 11:23:42,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/data/54549a6f2/640ef08fd01b430f8cb4e1709b330a34/FLAG71443c267 [2022-11-16 11:23:43,752 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:23:43,753 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2022-11-16 11:23:43,771 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/data/54549a6f2/640ef08fd01b430f8cb4e1709b330a34/FLAG71443c267 [2022-11-16 11:23:43,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/data/54549a6f2/640ef08fd01b430f8cb4e1709b330a34 [2022-11-16 11:23:43,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:23:43,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:23:43,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:23:43,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:23:43,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:23:43,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:43" (1/1) ... [2022-11-16 11:23:43,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553a21de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:43, skipping insertion in model container [2022-11-16 11:23:43,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:43" (1/1) ... [2022-11-16 11:23:44,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:23:44,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:23:44,494 WARN L229 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_db5574e9-0503-4043-9b00-538f2ae72921/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c[17676,17689] [2022-11-16 11:23:44,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:23:44,529 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:23:44,633 WARN L229 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_db5574e9-0503-4043-9b00-538f2ae72921/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c[17676,17689] [2022-11-16 11:23:44,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:23:44,660 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:23:44,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44 WrapperNode [2022-11-16 11:23:44,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:23:44,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:23:44,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:23:44,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:23:44,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,724 INFO L138 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 235 [2022-11-16 11:23:44,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:23:44,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:23:44,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:23:44,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:23:44,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,763 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:23:44,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:23:44,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:23:44,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:23:44,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (1/1) ... [2022-11-16 11:23:44,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:23:44,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:23:44,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:23:44,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:23:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:23:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-16 11:23:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-16 11:23:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 11:23:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 11:23:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 11:23:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 11:23:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-16 11:23:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-16 11:23:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 11:23:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 11:23:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:23:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 11:23:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 11:23:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:23:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:23:45,061 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:23:45,063 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:23:45,535 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:23:45,545 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:23:45,546 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:23:45,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:23:45 BoogieIcfgContainer [2022-11-16 11:23:45,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:23:45,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:23:45,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:23:45,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:23:45,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:23:43" (1/3) ... [2022-11-16 11:23:45,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cab003a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:45, skipping insertion in model container [2022-11-16 11:23:45,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:44" (2/3) ... [2022-11-16 11:23:45,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cab003a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:45, skipping insertion in model container [2022-11-16 11:23:45,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:23:45" (3/3) ... [2022-11-16 11:23:45,569 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2022-11-16 11:23:45,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:23:45,594 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:23:45,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:23:45,680 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;@b4cedcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:23:45,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:23:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-16 11:23:45,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 11:23:45,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:45,703 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] [2022-11-16 11:23:45,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:45,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:45,713 INFO L85 PathProgramCache]: Analyzing trace with hash 715093165, now seen corresponding path program 1 times [2022-11-16 11:23:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:45,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227560426] [2022-11-16 11:23:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:45,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:23:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:46,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:46,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227560426] [2022-11-16 11:23:46,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227560426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:46,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:46,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:23:46,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731983447] [2022-11-16 11:23:46,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:46,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:23:46,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:23:46,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:23:46,277 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:23:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:46,365 INFO L93 Difference]: Finished difference Result 153 states and 208 transitions. [2022-11-16 11:23:46,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:23:46,368 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-16 11:23:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:46,381 INFO L225 Difference]: With dead ends: 153 [2022-11-16 11:23:46,381 INFO L226 Difference]: Without dead ends: 72 [2022-11-16 11:23:46,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:23:46,396 INFO L413 NwaCegarLoop]: 101 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, 101 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 [2022-11-16 11:23:46,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:23:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-16 11:23:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-16 11:23:46,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 62 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 11:23:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2022-11-16 11:23:46,480 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 25 [2022-11-16 11:23:46,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:46,481 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2022-11-16 11:23:46,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:23:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2022-11-16 11:23:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 11:23:46,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:46,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:46,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:23:46,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:46,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash 793385251, now seen corresponding path program 1 times [2022-11-16 11:23:46,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:46,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080352061] [2022-11-16 11:23:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:46,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:23:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:46,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:46,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080352061] [2022-11-16 11:23:46,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080352061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:46,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:46,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:23:46,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302502530] [2022-11-16 11:23:46,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:46,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:23:46,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:46,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:23:46,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:23:46,679 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:23:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:46,706 INFO L93 Difference]: Finished difference Result 104 states and 133 transitions. [2022-11-16 11:23:46,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:23:46,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-16 11:23:46,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:46,709 INFO L225 Difference]: With dead ends: 104 [2022-11-16 11:23:46,710 INFO L226 Difference]: Without dead ends: 63 [2022-11-16 11:23:46,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:23:46,713 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 18 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 136 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 [2022-11-16 11:23:46,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:23:46,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-16 11:23:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-16 11:23:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 56 states have internal predecessors, (68), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 11:23:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2022-11-16 11:23:46,728 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 26 [2022-11-16 11:23:46,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:46,729 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2022-11-16 11:23:46,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:23:46,730 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2022-11-16 11:23:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 11:23:46,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:46,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:46,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:23:46,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:46,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1810241430, now seen corresponding path program 1 times [2022-11-16 11:23:46,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:46,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853234156] [2022-11-16 11:23:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:46,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:23:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:46,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:46,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853234156] [2022-11-16 11:23:46,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853234156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:46,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:46,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:23:46,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358939046] [2022-11-16 11:23:46,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:46,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:23:46,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:23:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:23:46,969 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:23:47,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:47,043 INFO L93 Difference]: Finished difference Result 171 states and 223 transitions. [2022-11-16 11:23:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:23:47,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-11-16 11:23:47,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:47,047 INFO L225 Difference]: With dead ends: 171 [2022-11-16 11:23:47,047 INFO L226 Difference]: Without dead ends: 116 [2022-11-16 11:23:47,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:23:47,050 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 57 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:47,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 167 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:23:47,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-16 11:23:47,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2022-11-16 11:23:47,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 97 states have internal predecessors, (120), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-16 11:23:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 144 transitions. [2022-11-16 11:23:47,106 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 144 transitions. Word has length 31 [2022-11-16 11:23:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:47,107 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 144 transitions. [2022-11-16 11:23:47,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:23:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 144 transitions. [2022-11-16 11:23:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 11:23:47,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:47,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:47,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:23:47,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:47,114 INFO L85 PathProgramCache]: Analyzing trace with hash 423901217, now seen corresponding path program 1 times [2022-11-16 11:23:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:47,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197980786] [2022-11-16 11:23:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:23:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:47,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:47,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197980786] [2022-11-16 11:23:47,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197980786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:47,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:47,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:23:47,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090490134] [2022-11-16 11:23:47,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:47,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:23:47,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:47,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:23:47,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:23:47,449 INFO L87 Difference]: Start difference. First operand 111 states and 144 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-11-16 11:23:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:47,601 INFO L93 Difference]: Finished difference Result 315 states and 417 transitions. [2022-11-16 11:23:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:23:47,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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 34 [2022-11-16 11:23:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:47,606 INFO L225 Difference]: With dead ends: 315 [2022-11-16 11:23:47,606 INFO L226 Difference]: Without dead ends: 212 [2022-11-16 11:23:47,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:47,610 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 50 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:47,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 380 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:23:47,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-16 11:23:47,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2022-11-16 11:23:47,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 161 states have (on average 1.3478260869565217) internal successors, (217), 178 states have internal predecessors, (217), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (26), 20 states have call predecessors, (26), 24 states have call successors, (26) [2022-11-16 11:23:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 267 transitions. [2022-11-16 11:23:47,647 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 267 transitions. Word has length 34 [2022-11-16 11:23:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:47,647 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 267 transitions. [2022-11-16 11:23:47,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-11-16 11:23:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 267 transitions. [2022-11-16 11:23:47,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 11:23:47,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:47,651 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] [2022-11-16 11:23:47,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:23:47,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:47,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1743336419, now seen corresponding path program 1 times [2022-11-16 11:23:47,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:47,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273519341] [2022-11-16 11:23:47,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:47,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:23:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 11:23:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:47,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:47,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273519341] [2022-11-16 11:23:47,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273519341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:47,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:47,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:23:47,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976243132] [2022-11-16 11:23:47,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:47,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:23:47,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:47,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:23:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:23:47,962 INFO L87 Difference]: Start difference. First operand 206 states and 267 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:23:48,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:48,446 INFO L93 Difference]: Finished difference Result 560 states and 738 transitions. [2022-11-16 11:23:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:23:48,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2022-11-16 11:23:48,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:48,465 INFO L225 Difference]: With dead ends: 560 [2022-11-16 11:23:48,465 INFO L226 Difference]: Without dead ends: 362 [2022-11-16 11:23:48,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:23:48,475 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 101 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:48,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 151 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:23:48,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-16 11:23:48,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 350. [2022-11-16 11:23:48,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 269 states have (on average 1.304832713754647) internal successors, (351), 290 states have internal predecessors, (351), 40 states have call successors, (40), 40 states have call predecessors, (40), 40 states have return successors, (52), 40 states have call predecessors, (52), 40 states have call successors, (52) [2022-11-16 11:23:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 443 transitions. [2022-11-16 11:23:48,572 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 443 transitions. Word has length 38 [2022-11-16 11:23:48,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:48,575 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 443 transitions. [2022-11-16 11:23:48,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:23:48,577 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 443 transitions. [2022-11-16 11:23:48,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-16 11:23:48,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:48,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:48,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:23:48,590 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:48,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:48,591 INFO L85 PathProgramCache]: Analyzing trace with hash -385201440, now seen corresponding path program 1 times [2022-11-16 11:23:48,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:48,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633039177] [2022-11-16 11:23:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:48,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:48,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:23:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 11:23:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:48,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:48,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:48,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633039177] [2022-11-16 11:23:48,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633039177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:48,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:48,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:48,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027008217] [2022-11-16 11:23:48,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:48,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:23:48,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:48,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:23:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:23:48,799 INFO L87 Difference]: Start difference. First operand 350 states and 443 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:23:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:49,129 INFO L93 Difference]: Finished difference Result 994 states and 1307 transitions. [2022-11-16 11:23:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-16 11:23:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:49,142 INFO L225 Difference]: With dead ends: 994 [2022-11-16 11:23:49,142 INFO L226 Difference]: Without dead ends: 652 [2022-11-16 11:23:49,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:49,152 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 115 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:49,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 90 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:23:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-11-16 11:23:49,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 650. [2022-11-16 11:23:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 505 states have (on average 1.2811881188118812) internal successors, (647), 534 states have internal predecessors, (647), 76 states have call successors, (76), 76 states have call predecessors, (76), 68 states have return successors, (108), 68 states have call predecessors, (108), 76 states have call successors, (108) [2022-11-16 11:23:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 831 transitions. [2022-11-16 11:23:49,269 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 831 transitions. Word has length 44 [2022-11-16 11:23:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:49,270 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 831 transitions. [2022-11-16 11:23:49,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:23:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 831 transitions. [2022-11-16 11:23:49,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-16 11:23:49,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:49,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:49,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:23:49,275 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1303742302, now seen corresponding path program 1 times [2022-11-16 11:23:49,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:49,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284201167] [2022-11-16 11:23:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:49,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:23:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 11:23:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:49,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:49,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284201167] [2022-11-16 11:23:49,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284201167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:49,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:49,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:23:49,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854533790] [2022-11-16 11:23:49,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:49,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:23:49,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:49,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:23:49,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:23:49,435 INFO L87 Difference]: Start difference. First operand 650 states and 831 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:23:49,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:49,881 INFO L93 Difference]: Finished difference Result 1428 states and 1860 transitions. [2022-11-16 11:23:49,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:23:49,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-16 11:23:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:49,890 INFO L225 Difference]: With dead ends: 1428 [2022-11-16 11:23:49,890 INFO L226 Difference]: Without dead ends: 786 [2022-11-16 11:23:49,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:23:49,901 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 79 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:49,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 160 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:23:49,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2022-11-16 11:23:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 690. [2022-11-16 11:23:50,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 541 states have (on average 1.2643253234750462) internal successors, (684), 572 states have internal predecessors, (684), 78 states have call successors, (78), 76 states have call predecessors, (78), 70 states have return successors, (114), 70 states have call predecessors, (114), 78 states have call successors, (114) [2022-11-16 11:23:50,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 876 transitions. [2022-11-16 11:23:50,032 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 876 transitions. Word has length 44 [2022-11-16 11:23:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:50,033 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 876 transitions. [2022-11-16 11:23:50,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:23:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 876 transitions. [2022-11-16 11:23:50,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-16 11:23:50,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:50,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:50,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:23:50,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:50,045 INFO L85 PathProgramCache]: Analyzing trace with hash -284605600, now seen corresponding path program 1 times [2022-11-16 11:23:50,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:50,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392749305] [2022-11-16 11:23:50,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:50,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:23:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:50,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 11:23:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:50,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:50,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392749305] [2022-11-16 11:23:50,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392749305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:50,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:50,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:23:50,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746824831] [2022-11-16 11:23:50,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:50,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:23:50,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:23:50,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:23:50,257 INFO L87 Difference]: Start difference. First operand 690 states and 876 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:23:50,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:50,911 INFO L93 Difference]: Finished difference Result 1358 states and 1734 transitions. [2022-11-16 11:23:50,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:23:50,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-16 11:23:50,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:50,916 INFO L225 Difference]: With dead ends: 1358 [2022-11-16 11:23:50,917 INFO L226 Difference]: Without dead ends: 676 [2022-11-16 11:23:50,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:23:50,921 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 228 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:50,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 154 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:23:50,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-11-16 11:23:50,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 538. [2022-11-16 11:23:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 421 states have (on average 1.2470308788598574) internal successors, (525), 446 states have internal predecessors, (525), 60 states have call successors, (60), 60 states have call predecessors, (60), 56 states have return successors, (74), 56 states have call predecessors, (74), 60 states have call successors, (74) [2022-11-16 11:23:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 659 transitions. [2022-11-16 11:23:50,991 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 659 transitions. Word has length 44 [2022-11-16 11:23:50,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:50,992 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 659 transitions. [2022-11-16 11:23:50,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:23:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 659 transitions. [2022-11-16 11:23:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-16 11:23:50,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:50,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:50,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:23:50,996 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:50,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:50,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1618658684, now seen corresponding path program 1 times [2022-11-16 11:23:50,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:50,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000105428] [2022-11-16 11:23:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:50,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:23:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:23:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:23:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:51,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:51,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000105428] [2022-11-16 11:23:51,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000105428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:51,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:51,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:23:51,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035505940] [2022-11-16 11:23:51,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:51,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:23:51,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:51,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:23:51,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:51,155 INFO L87 Difference]: Start difference. First operand 538 states and 659 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 11:23:51,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:51,714 INFO L93 Difference]: Finished difference Result 1070 states and 1354 transitions. [2022-11-16 11:23:51,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:23:51,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-11-16 11:23:51,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:51,723 INFO L225 Difference]: With dead ends: 1070 [2022-11-16 11:23:51,723 INFO L226 Difference]: Without dead ends: 1068 [2022-11-16 11:23:51,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:51,728 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 234 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:51,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 113 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:23:51,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-16 11:23:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 841. [2022-11-16 11:23:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 667 states have (on average 1.2608695652173914) internal successors, (841), 720 states have internal predecessors, (841), 91 states have call successors, (91), 71 states have call predecessors, (91), 82 states have return successors, (137), 86 states have call predecessors, (137), 91 states have call successors, (137) [2022-11-16 11:23:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1069 transitions. [2022-11-16 11:23:51,851 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1069 transitions. Word has length 48 [2022-11-16 11:23:51,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:51,851 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1069 transitions. [2022-11-16 11:23:51,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 11:23:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1069 transitions. [2022-11-16 11:23:51,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 11:23:51,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:51,859 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:51,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:23:51,860 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:51,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:51,861 INFO L85 PathProgramCache]: Analyzing trace with hash 305159939, now seen corresponding path program 1 times [2022-11-16 11:23:51,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:51,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906584117] [2022-11-16 11:23:51,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:51,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:23:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:23:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 11:23:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:23:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:23:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 11:23:52,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:52,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906584117] [2022-11-16 11:23:52,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906584117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:52,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:52,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:23:52,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109154194] [2022-11-16 11:23:52,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:52,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:23:52,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:52,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:23:52,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:23:52,005 INFO L87 Difference]: Start difference. First operand 841 states and 1069 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-16 11:23:52,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:52,600 INFO L93 Difference]: Finished difference Result 1437 states and 1821 transitions. [2022-11-16 11:23:52,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:23:52,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 78 [2022-11-16 11:23:52,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:52,625 INFO L225 Difference]: With dead ends: 1437 [2022-11-16 11:23:52,626 INFO L226 Difference]: Without dead ends: 604 [2022-11-16 11:23:52,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:23:52,634 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 279 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:52,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 175 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:23:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-11-16 11:23:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 558. [2022-11-16 11:23:52,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 439 states have (on average 1.2369020501138952) internal successors, (543), 474 states have internal predecessors, (543), 61 states have call successors, (61), 51 states have call predecessors, (61), 57 states have return successors, (87), 57 states have call predecessors, (87), 61 states have call successors, (87) [2022-11-16 11:23:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 691 transitions. [2022-11-16 11:23:52,746 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 691 transitions. Word has length 78 [2022-11-16 11:23:52,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:52,747 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 691 transitions. [2022-11-16 11:23:52,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-16 11:23:52,748 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 691 transitions. [2022-11-16 11:23:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 11:23:52,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:52,753 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:52,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:23:52,753 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:52,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1210131555, now seen corresponding path program 1 times [2022-11-16 11:23:52,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:52,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273657996] [2022-11-16 11:23:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:52,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:23:52,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:23:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:23:52,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:23:52,885 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:23:52,887 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:23:52,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:23:52,898 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:52,903 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:23:53,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:23:53 BoogieIcfgContainer [2022-11-16 11:23:53,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:23:53,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:23:53,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:23:53,047 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:23:53,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:23:45" (3/4) ... [2022-11-16 11:23:53,051 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 11:23:53,174 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:23:53,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:23:53,176 INFO L158 Benchmark]: Toolchain (without parser) took 9201.69ms. Allocated memory was 132.1MB in the beginning and 226.5MB in the end (delta: 94.4MB). Free memory was 86.6MB in the beginning and 145.8MB in the end (delta: -59.2MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-11-16 11:23:53,176 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 132.1MB. Free memory was 104.4MB in the beginning and 104.2MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:23:53,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.14ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 97.3MB in the end (delta: -11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:23:53,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.90ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 95.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:23:53,178 INFO L158 Benchmark]: Boogie Preprocessor took 53.90ms. Allocated memory is still 132.1MB. Free memory was 95.1MB in the beginning and 93.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:23:53,178 INFO L158 Benchmark]: RCFGBuilder took 768.38ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 75.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 11:23:53,179 INFO L158 Benchmark]: TraceAbstraction took 7493.65ms. Allocated memory was 132.1MB in the beginning and 226.5MB in the end (delta: 94.4MB). Free memory was 74.8MB in the beginning and 152.1MB in the end (delta: -77.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-16 11:23:53,179 INFO L158 Benchmark]: Witness Printer took 128.29ms. Allocated memory is still 226.5MB. Free memory was 152.1MB in the beginning and 145.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 11:23:53,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 132.1MB. Free memory was 104.4MB in the beginning and 104.2MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.14ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 97.3MB in the end (delta: -11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.90ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 95.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.90ms. Allocated memory is still 132.1MB. Free memory was 95.1MB in the beginning and 93.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 768.38ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 75.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7493.65ms. Allocated memory was 132.1MB in the beginning and 226.5MB in the end (delta: 94.4MB). Free memory was 74.8MB in the beginning and 152.1MB in the end (delta: -77.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Witness Printer took 128.29ms. Allocated memory is still 226.5MB. Free memory was 152.1MB in the beginning and 145.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 910]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L915] int methAndRunningLastTime ; [L58] int methaneLevelCritical = 0; [L661] int pumpRunning = 0; [L57] int waterLevel = 1; [L662] int systemActive = 1; [L555] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] int retValue_acc ; [L634] int tmp ; [L638] FCALL select_helpers() [L639] FCALL select_features() [L640] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L640] RET, EXPR valid_product() [L640] tmp = valid_product() [L642] COND TRUE \read(tmp) [L644] FCALL setup() [L645] CALL runTest() [L626] CALL __utac_acc__Specification2_spec__1() [L920] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L626] RET __utac_acc__Specification2_spec__1() [L627] CALL test() [L838] int splverifierCounter ; [L839] int tmp ; [L840] int tmp___0 ; [L841] int tmp___1 ; [L842] int tmp___2 ; [L845] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L847] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L849] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L855] tmp = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L859] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L865] tmp___0 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L869] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L87] COND FALSE !(\read(methaneLevelCritical)) [L90] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L869] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L875] tmp___2 = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp___2)) [L883] tmp___1 = __VERIFIER_nondet_int() [L885] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L894] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L669] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L701] COND TRUE ! pumpRunning [L703] CALL, EXPR isHighWaterLevel() [L795] int retValue_acc ; [L796] int tmp ; [L797] int tmp___0 ; [L801] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L801] RET, EXPR isHighWaterSensorDry() [L801] tmp = isHighWaterSensorDry() [L803] COND FALSE !(\read(tmp)) [L806] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L808] retValue_acc = tmp___0 [L809] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L703] RET, EXPR isHighWaterLevel() [L703] tmp = isHighWaterLevel() [L705] COND TRUE \read(tmp) [L707] CALL activatePump() [L726] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L707] RET activatePump() [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification2_spec__2() [L925] int tmp ; [L926] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L930] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L930] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L930] tmp = isMethaneLevelCritical() [L932] COND TRUE \read(tmp) [L934] CALL, EXPR isPumpRunning() [L750] int retValue_acc ; [L753] retValue_acc = pumpRunning [L754] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L934] RET, EXPR isPumpRunning() [L934] tmp___0 = isPumpRunning() [L936] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L937] COND FALSE !(\read(methAndRunningLastTime)) [L942] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L684] RET __utac_acc__Specification2_spec__2() [L894] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L847] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L849] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L855] tmp = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L865] tmp___0 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L875] tmp___2 = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp___2)) [L883] tmp___1 = __VERIFIER_nondet_int() [L885] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L894] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L669] COND TRUE \read(pumpRunning) [L671] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L671] RET lowerWaterLevel() [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L701] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L716] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification2_spec__2() [L925] int tmp ; [L926] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L930] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L930] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L930] tmp = isMethaneLevelCritical() [L932] COND TRUE \read(tmp) [L934] CALL, EXPR isPumpRunning() [L750] int retValue_acc ; [L753] retValue_acc = pumpRunning [L754] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L934] RET, EXPR isPumpRunning() [L934] tmp___0 = isPumpRunning() [L936] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L937] COND TRUE \read(methAndRunningLastTime) [L939] CALL __automaton_fail() [L910] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1190 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1161 mSDsluCounter, 1627 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1018 mSDsCounter, 239 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1346 IncrementalHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 239 mSolverCounterUnsat, 609 mSDtfsCounter, 1346 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=841occurred in iteration=9, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 532 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 402 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 22/22 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! [2022-11-16 11:23:53,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5574e9-0503-4043-9b00-538f2ae72921/bin/uautomizer-tPACEb0tL8/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