./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ --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 b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 --- 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-dbf71c6-m [2022-10-17 10:17:46,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:17:46,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:17:46,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:17:46,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:17:46,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:17:46,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:17:46,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:17:46,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:17:46,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:17:46,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:17:46,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:17:46,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:17:46,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:17:46,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:17:46,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:17:46,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:17:46,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:17:46,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:17:46,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:17:46,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:17:46,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:17:46,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:17:46,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:17:46,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:17:46,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:17:46,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:17:46,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:17:46,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:17:46,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:17:46,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:17:46,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:17:46,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:17:46,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:17:46,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:17:46,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:17:46,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:17:46,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:17:46,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:17:46,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:17:46,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:17:46,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:17:46,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:17:46,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:17:46,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:17:46,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:17:46,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:17:46,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:17:46,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:17:46,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:17:46,347 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:17:46,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:17:46,348 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:17:46,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:17:46,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:17:46,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:17:46,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:17:46,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:17:46,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:17:46,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:17:46,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:17:46,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:17:46,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:17:46,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:17:46,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:17:46,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:17:46,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:17:46,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:17:46,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:17:46,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:17:46,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:17:46,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:17:46,355 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:17:46,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:17:46,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:17:46,356 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_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 [2022-10-17 10:17:46,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:17:46,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:17:46,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:17:46,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:17:46,759 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:17:46,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2022-10-17 10:17:46,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/data/52d1687db/3da8ac68d2c54041b1b0979f4f066bcc/FLAG4c3090137 [2022-10-17 10:17:47,470 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:17:47,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2022-10-17 10:17:47,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/data/52d1687db/3da8ac68d2c54041b1b0979f4f066bcc/FLAG4c3090137 [2022-10-17 10:17:47,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/data/52d1687db/3da8ac68d2c54041b1b0979f4f066bcc [2022-10-17 10:17:47,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:17:47,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:17:47,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:17:47,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:17:47,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:17:47,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:17:47" (1/1) ... [2022-10-17 10:17:47,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f07eb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:47, skipping insertion in model container [2022-10-17 10:17:47,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:17:47" (1/1) ... [2022-10-17 10:17:47,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:17:47,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:17:48,180 WARN L230 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_5fa1d7e5-e198-4f80-a317-6d629fade424/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2022-10-17 10:17:48,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:17:48,256 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:17:48,316 WARN L230 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_5fa1d7e5-e198-4f80-a317-6d629fade424/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2022-10-17 10:17:48,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:17:48,363 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:17:48,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48 WrapperNode [2022-10-17 10:17:48,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:17:48,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:17:48,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:17:48,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:17:48,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,429 INFO L138 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 220 [2022-10-17 10:17:48,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:17:48,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:17:48,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:17:48,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:17:48,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:17:48,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:17:48,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:17:48,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:17:48,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (1/1) ... [2022-10-17 10:17:48,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:17:48,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:17:48,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:17:48,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:17:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:17:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-10-17 10:17:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-10-17 10:17:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-10-17 10:17:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-10-17 10:17:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 10:17:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 10:17:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 10:17:48,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 10:17:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 10:17:48,592 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 10:17:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:17:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 10:17:48,592 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 10:17:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:17:48,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:17:48,728 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:17:48,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:17:49,196 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:17:49,206 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:17:49,209 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:17:49,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:17:49 BoogieIcfgContainer [2022-10-17 10:17:49,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:17:49,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:17:49,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:17:49,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:17:49,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:17:47" (1/3) ... [2022-10-17 10:17:49,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4852245e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:17:49, skipping insertion in model container [2022-10-17 10:17:49,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:48" (2/3) ... [2022-10-17 10:17:49,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4852245e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:17:49, skipping insertion in model container [2022-10-17 10:17:49,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:17:49" (3/3) ... [2022-10-17 10:17:49,228 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2022-10-17 10:17:49,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:17:49,254 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:17:49,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:17:49,333 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;@2848eb17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:17:49,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:17:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 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) [2022-10-17 10:17:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 10:17:49,352 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:49,353 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] [2022-10-17 10:17:49,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash -206435810, now seen corresponding path program 1 times [2022-10-17 10:17:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:49,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895110272] [2022-10-17 10:17:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:49,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:49,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:17:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:49,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:49,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:49,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895110272] [2022-10-17 10:17:49,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895110272] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:49,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:49,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:17:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635606379] [2022-10-17 10:17:49,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:49,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:17:49,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:49,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:17:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:17:49,699 INFO L87 Difference]: Start difference. First operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-10-17 10:17:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:49,767 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-10-17 10:17:49,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:17:49,769 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-10-17 10:17:49,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:49,781 INFO L225 Difference]: With dead ends: 142 [2022-10-17 10:17:49,781 INFO L226 Difference]: Without dead ends: 66 [2022-10-17 10:17:49,800 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 [2022-10-17 10:17:49,805 INFO L413 NwaCegarLoop]: 93 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, 93 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 [2022-10-17 10:17:49,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:17:49,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-17 10:17:49,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-17 10:17:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 states have internal predecessors, (67), 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) [2022-10-17 10:17:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2022-10-17 10:17:49,864 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 23 [2022-10-17 10:17:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:49,865 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2022-10-17 10:17:49,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-10-17 10:17:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-10-17 10:17:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 10:17:49,869 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:49,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:49,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:17:49,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:49,871 INFO L85 PathProgramCache]: Analyzing trace with hash 221541849, now seen corresponding path program 1 times [2022-10-17 10:17:49,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:49,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988136773] [2022-10-17 10:17:49,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:49,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:50,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-17 10:17:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:50,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:50,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988136773] [2022-10-17 10:17:50,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988136773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:50,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:50,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:17:50,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851075656] [2022-10-17 10:17:50,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:50,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:17:50,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:50,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:17:50,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:17:50,120 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-10-17 10:17:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:50,143 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2022-10-17 10:17:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:17:50,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-10-17 10:17:50,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:50,153 INFO L225 Difference]: With dead ends: 97 [2022-10-17 10:17:50,153 INFO L226 Difference]: Without dead ends: 57 [2022-10-17 10:17:50,155 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 [2022-10-17 10:17:50,157 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 125 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 [2022-10-17 10:17:50,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:17:50,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-17 10:17:50,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-17 10:17:50,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 50 states have internal predecessors, (60), 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) [2022-10-17 10:17:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-10-17 10:17:50,185 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 24 [2022-10-17 10:17:50,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:50,189 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-10-17 10:17:50,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-10-17 10:17:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-10-17 10:17:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-17 10:17:50,197 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:50,197 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] [2022-10-17 10:17:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:17:50,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1994310983, now seen corresponding path program 1 times [2022-10-17 10:17:50,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:50,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141190515] [2022-10-17 10:17:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:17:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:50,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:50,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141190515] [2022-10-17 10:17:50,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141190515] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:50,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:50,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:17:50,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246745026] [2022-10-17 10:17:50,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:50,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:17:50,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:50,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:17:50,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:17:50,412 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-10-17 10:17:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:50,544 INFO L93 Difference]: Finished difference Result 107 states and 138 transitions. [2022-10-17 10:17:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:17:50,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2022-10-17 10:17:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:50,553 INFO L225 Difference]: With dead ends: 107 [2022-10-17 10:17:50,553 INFO L226 Difference]: Without dead ends: 57 [2022-10-17 10:17:50,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:17:50,559 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 97 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:50,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 163 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:17:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-17 10:17:50,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-17 10:17:50,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 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) [2022-10-17 10:17:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2022-10-17 10:17:50,588 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 29 [2022-10-17 10:17:50,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:50,589 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2022-10-17 10:17:50,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-10-17 10:17:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2022-10-17 10:17:50,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 10:17:50,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:50,595 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] [2022-10-17 10:17:50,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:17:50,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:50,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1633945012, now seen corresponding path program 1 times [2022-10-17 10:17:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:50,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218573286] [2022-10-17 10:17:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:50,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:50,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:17:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:17:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:50,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:50,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218573286] [2022-10-17 10:17:50,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218573286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:50,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:50,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:17:50,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64519180] [2022-10-17 10:17:50,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:50,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:17:50,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:50,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:17:50,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:17:50,837 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:17:50,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:50,900 INFO L93 Difference]: Finished difference Result 146 states and 186 transitions. [2022-10-17 10:17:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:17:50,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 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 34 [2022-10-17 10:17:50,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:50,903 INFO L225 Difference]: With dead ends: 146 [2022-10-17 10:17:50,916 INFO L226 Difference]: Without dead ends: 96 [2022-10-17 10:17:50,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:17:50,919 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 44 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:50,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 137 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:17:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-17 10:17:50,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2022-10-17 10:17:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.3013698630136987) internal successors, (95), 79 states have internal predecessors, (95), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-10-17 10:17:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 117 transitions. [2022-10-17 10:17:50,942 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 117 transitions. Word has length 34 [2022-10-17 10:17:50,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:50,943 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 117 transitions. [2022-10-17 10:17:50,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:17:50,943 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2022-10-17 10:17:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 10:17:50,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:50,945 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] [2022-10-17 10:17:50,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:17:50,945 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:50,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:50,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1413607109, now seen corresponding path program 1 times [2022-10-17 10:17:50,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:50,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56132462] [2022-10-17 10:17:50,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:50,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:17:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:51,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:51,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56132462] [2022-10-17 10:17:51,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56132462] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:51,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:51,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:17:51,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544500548] [2022-10-17 10:17:51,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:51,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:17:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:51,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:17:51,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:17:51,153 INFO L87 Difference]: Start difference. First operand 94 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:17:51,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:51,243 INFO L93 Difference]: Finished difference Result 199 states and 251 transitions. [2022-10-17 10:17:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:17:51,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-10-17 10:17:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:51,247 INFO L225 Difference]: With dead ends: 199 [2022-10-17 10:17:51,247 INFO L226 Difference]: Without dead ends: 112 [2022-10-17 10:17:51,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:17:51,251 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 48 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:51,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 320 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:17:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-17 10:17:51,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 97. [2022-10-17 10:17:51,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 82 states have internal predecessors, (98), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-10-17 10:17:51,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 120 transitions. [2022-10-17 10:17:51,286 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 120 transitions. Word has length 38 [2022-10-17 10:17:51,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:51,287 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 120 transitions. [2022-10-17 10:17:51,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:17:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2022-10-17 10:17:51,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 10:17:51,293 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:51,293 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] [2022-10-17 10:17:51,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:17:51,294 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:51,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:51,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1860291833, now seen corresponding path program 1 times [2022-10-17 10:17:51,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:51,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491926082] [2022-10-17 10:17:51,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:51,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:17:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:51,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:51,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491926082] [2022-10-17 10:17:51,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491926082] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:51,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:51,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:17:51,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119225736] [2022-10-17 10:17:51,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:51,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:17:51,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:51,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:17:51,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:17:51,415 INFO L87 Difference]: Start difference. First operand 97 states and 120 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:17:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:51,455 INFO L93 Difference]: Finished difference Result 205 states and 260 transitions. [2022-10-17 10:17:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:17:51,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-10-17 10:17:51,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:51,458 INFO L225 Difference]: With dead ends: 205 [2022-10-17 10:17:51,459 INFO L226 Difference]: Without dead ends: 115 [2022-10-17 10:17:51,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:17:51,461 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 31 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:51,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 222 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:17:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-17 10:17:51,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 99. [2022-10-17 10:17:51,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 84 states have internal predecessors, (100), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-10-17 10:17:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 122 transitions. [2022-10-17 10:17:51,482 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 122 transitions. Word has length 38 [2022-10-17 10:17:51,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:51,483 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 122 transitions. [2022-10-17 10:17:51,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:17:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 122 transitions. [2022-10-17 10:17:51,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 10:17:51,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:51,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:51,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:17:51,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:51,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -133852873, now seen corresponding path program 1 times [2022-10-17 10:17:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:51,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834611795] [2022-10-17 10:17:51,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:51,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:17:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:51,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:51,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834611795] [2022-10-17 10:17:51,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834611795] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:51,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:51,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:17:51,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520284669] [2022-10-17 10:17:51,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:51,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:17:51,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:51,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:17:51,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:17:51,603 INFO L87 Difference]: Start difference. First operand 99 states and 122 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:17:51,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:51,636 INFO L93 Difference]: Finished difference Result 235 states and 293 transitions. [2022-10-17 10:17:51,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:17:51,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-10-17 10:17:51,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:51,639 INFO L225 Difference]: With dead ends: 235 [2022-10-17 10:17:51,639 INFO L226 Difference]: Without dead ends: 143 [2022-10-17 10:17:51,640 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 [2022-10-17 10:17:51,641 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 36 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:51,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 133 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:17:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-10-17 10:17:51,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2022-10-17 10:17:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 111 states have (on average 1.2612612612612613) internal successors, (140), 118 states have internal predecessors, (140), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2022-10-17 10:17:51,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2022-10-17 10:17:51,689 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 38 [2022-10-17 10:17:51,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:51,689 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2022-10-17 10:17:51,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:17:51,690 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2022-10-17 10:17:51,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 10:17:51,698 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:51,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:51,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:17:51,699 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:51,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:51,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1971526852, now seen corresponding path program 1 times [2022-10-17 10:17:51,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:51,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872143001] [2022-10-17 10:17:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:51,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:17:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:17:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:51,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:51,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872143001] [2022-10-17 10:17:51,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872143001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:51,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:51,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:17:51,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360225903] [2022-10-17 10:17:51,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:51,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:17:51,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:17:51,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:17:51,911 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:17:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:52,044 INFO L93 Difference]: Finished difference Result 410 states and 514 transitions. [2022-10-17 10:17:52,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:17:52,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2022-10-17 10:17:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:52,059 INFO L225 Difference]: With dead ends: 410 [2022-10-17 10:17:52,059 INFO L226 Difference]: Without dead ends: 276 [2022-10-17 10:17:52,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:17:52,062 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 37 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:52,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 336 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:17:52,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-10-17 10:17:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 267. [2022-10-17 10:17:52,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 208 states have (on average 1.2355769230769231) internal successors, (257), 221 states have internal predecessors, (257), 30 states have call successors, (30), 30 states have call predecessors, (30), 28 states have return successors, (37), 28 states have call predecessors, (37), 30 states have call successors, (37) [2022-10-17 10:17:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 324 transitions. [2022-10-17 10:17:52,143 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 324 transitions. Word has length 40 [2022-10-17 10:17:52,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:52,144 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 324 transitions. [2022-10-17 10:17:52,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:17:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 324 transitions. [2022-10-17 10:17:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 10:17:52,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:52,146 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] [2022-10-17 10:17:52,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:17:52,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:52,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:52,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1628171416, now seen corresponding path program 1 times [2022-10-17 10:17:52,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:52,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951166715] [2022-10-17 10:17:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:52,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-17 10:17:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:17:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:52,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:17:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:17:52,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:52,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951166715] [2022-10-17 10:17:52,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951166715] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:52,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:52,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:17:52,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342576164] [2022-10-17 10:17:52,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:52,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:17:52,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:52,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:17:52,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:17:52,356 INFO L87 Difference]: Start difference. First operand 267 states and 324 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:17:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:52,646 INFO L93 Difference]: Finished difference Result 278 states and 336 transitions. [2022-10-17 10:17:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:17:52,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 3 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 44 [2022-10-17 10:17:52,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:52,653 INFO L225 Difference]: With dead ends: 278 [2022-10-17 10:17:52,653 INFO L226 Difference]: Without dead ends: 276 [2022-10-17 10:17:52,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:17:52,657 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 83 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:52,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 166 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:17:52,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-10-17 10:17:52,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 267. [2022-10-17 10:17:52,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 208 states have (on average 1.2259615384615385) internal successors, (255), 221 states have internal predecessors, (255), 30 states have call successors, (30), 30 states have call predecessors, (30), 28 states have return successors, (37), 28 states have call predecessors, (37), 30 states have call successors, (37) [2022-10-17 10:17:52,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 322 transitions. [2022-10-17 10:17:52,706 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 322 transitions. Word has length 44 [2022-10-17 10:17:52,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:52,707 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 322 transitions. [2022-10-17 10:17:52,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:17:52,707 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 322 transitions. [2022-10-17 10:17:52,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 10:17:52,708 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:52,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:52,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:17:52,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:52,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:52,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2005773631, now seen corresponding path program 1 times [2022-10-17 10:17:52,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:52,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876646258] [2022-10-17 10:17:52,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:52,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:17:52,766 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:17:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:17:52,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:17:52,828 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:17:52,829 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:17:52,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:17:52,837 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:52,841 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:17:52,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:17:52 BoogieIcfgContainer [2022-10-17 10:17:52,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:17:52,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:17:52,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:17:52,939 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:17:52,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:17:49" (3/4) ... [2022-10-17 10:17:52,942 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:17:53,019 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:17:53,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:17:53,020 INFO L158 Benchmark]: Toolchain (without parser) took 5308.04ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 74.9MB in the beginning and 119.9MB in the end (delta: -45.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:17:53,021 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:17:53,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.29ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 82.4MB in the end (delta: -7.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:17:53,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.01ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:17:53,022 INFO L158 Benchmark]: Boogie Preprocessor took 36.87ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:17:53,023 INFO L158 Benchmark]: RCFGBuilder took 745.23ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 60.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 10:17:53,023 INFO L158 Benchmark]: TraceAbstraction took 3720.19ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 60.4MB in the beginning and 125.2MB in the end (delta: -64.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2022-10-17 10:17:53,024 INFO L158 Benchmark]: Witness Printer took 80.97ms. Allocated memory is still 153.1MB. Free memory was 125.2MB in the beginning and 119.9MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:17:53,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.29ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 82.4MB in the end (delta: -7.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.01ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.87ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 745.23ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 60.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3720.19ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 60.4MB in the beginning and 125.2MB in the end (delta: -64.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Witness Printer took 80.97ms. Allocated memory is still 153.1MB. Free memory was 125.2MB in the beginning and 119.9MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 524]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int waterLevel = 1; [L535] int methaneLevelCritical = 0; [L699] int pumpRunning = 0; [L700] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L639] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L641] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L647] tmp = __VERIFIER_nondet_int() [L649] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L651] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L552] COND TRUE waterLevel < 2 [L553] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L661] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] COND FALSE !(\read(methaneLevelCritical)) [L567] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L661] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L671] CALL startSystem() [L855] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L671] RET startSystem() [L684] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L714] COND TRUE \read(systemActive) [L716] CALL processEnvironment() [L736] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] COND TRUE ! pumpRunning [L741] CALL, EXPR isHighWaterLevel() [L833] int retValue_acc ; [L834] int tmp ; [L835] int tmp___0 ; [L839] CALL, EXPR isHighWaterSensorDry() [L614] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L617] COND FALSE !(waterLevel < 2) [L621] retValue_acc = 0 [L622] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L839] RET, EXPR isHighWaterSensorDry() [L839] tmp = isHighWaterSensorDry() [L841] COND FALSE !(\read(tmp)) [L844] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L846] retValue_acc = tmp___0 [L847] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L741] RET, EXPR isHighWaterLevel() [L741] tmp = isHighWaterLevel() [L743] COND TRUE \read(tmp) [L745] CALL activatePump() [L764] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L745] RET activatePump() [L716] RET processEnvironment() [L722] CALL __utac_acc__Specification1_spec__1() [L861] int tmp ; [L862] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L866] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L573] int retValue_acc ; [L576] retValue_acc = methaneLevelCritical [L577] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L866] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L866] tmp = isMethaneLevelCritical() [L868] COND TRUE \read(tmp) [L870] CALL, EXPR isPumpRunning() [L788] int retValue_acc ; [L791] retValue_acc = pumpRunning [L792] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L870] RET, EXPR isPumpRunning() [L870] tmp___0 = isPumpRunning() [L872] COND TRUE \read(tmp___0) [L874] CALL __automaton_fail() [L524] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 389 mSDsluCounter, 1695 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 989 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 706 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=8, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 543 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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! [2022-10-17 10:17:53,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa1d7e5-e198-4f80-a317-6d629fade424/bin/uautomizer-J5u9QxTXDZ/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