./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:48:55,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:48:55,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:48:55,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:48:55,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:48:55,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:48:55,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:48:55,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:48:55,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:48:55,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:48:55,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:48:55,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:48:55,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:48:55,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:48:55,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:48:55,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:48:55,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:48:55,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:48:55,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:48:55,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:48:55,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:48:55,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:48:55,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:48:55,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:48:55,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:48:55,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:48:55,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:48:55,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:48:55,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:48:55,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:48:55,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:48:55,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:48:55,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:48:55,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:48:55,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:48:55,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:48:55,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:48:55,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:48:55,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:48:55,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:48:55,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:48:55,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:48:55,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:48:55,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:48:55,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:48:55,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:48:55,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:48:55,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:48:55,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:48:55,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:48:55,438 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:48:55,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:48:55,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:48:55,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:48:55,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:48:55,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:48:55,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:48:55,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:48:55,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:48:55,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:48:55,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:48:55,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:48:55,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:48:55,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:48:55,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:48:55,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:48:55,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:55,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:48:55,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:48:55,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:48:55,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:48:55,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:48:55,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:48:55,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:48:55,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:48:55,447 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_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2022-11-18 19:48:55,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:48:55,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:48:55,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:48:55,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:48:55,765 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:48:55,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-11-18 19:48:55,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/data/ce31233a1/5b14168d9c1b4a879df361ddf287cf81/FLAG837307521 [2022-11-18 19:48:56,344 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:48:56,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-11-18 19:48:56,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/data/ce31233a1/5b14168d9c1b4a879df361ddf287cf81/FLAG837307521 [2022-11-18 19:48:56,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/data/ce31233a1/5b14168d9c1b4a879df361ddf287cf81 [2022-11-18 19:48:56,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:48:56,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:48:56,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:56,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:48:56,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:48:56,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:56" (1/1) ... [2022-11-18 19:48:56,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487e715c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:56, skipping insertion in model container [2022-11-18 19:48:56,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:56" (1/1) ... [2022-11-18 19:48:56,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:48:56,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:48:56,992 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2022-11-18 19:48:57,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:57,069 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:48:57,094 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2022-11-18 19:48:57,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:57,171 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:48:57,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57 WrapperNode [2022-11-18 19:48:57,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:57,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:57,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:48:57,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:48:57,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,217 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 217 [2022-11-18 19:48:57,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:57,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:48:57,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:48:57,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:48:57,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:48:57,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:48:57,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:48:57,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:48:57,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (1/1) ... [2022-11-18 19:48:57,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:57,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:57,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:48:57,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:48:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:48:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 19:48:57,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 19:48:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 19:48:57,340 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 19:48:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 19:48:57,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 19:48:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 19:48:57,344 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 19:48:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 19:48:57,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 19:48:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 19:48:57,349 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 19:48:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-18 19:48:57,350 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-18 19:48:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-18 19:48:57,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-18 19:48:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-18 19:48:57,350 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-18 19:48:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:48:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 19:48:57,351 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 19:48:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:48:57,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:48:57,487 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:48:57,489 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:48:57,928 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:48:57,936 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:48:57,936 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:48:57,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:57 BoogieIcfgContainer [2022-11-18 19:48:57,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:48:57,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:48:57,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:48:57,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:48:57,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:48:56" (1/3) ... [2022-11-18 19:48:57,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a28dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:57, skipping insertion in model container [2022-11-18 19:48:57,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:57" (2/3) ... [2022-11-18 19:48:57,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a28dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:57, skipping insertion in model container [2022-11-18 19:48:57,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:57" (3/3) ... [2022-11-18 19:48:57,949 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2022-11-18 19:48:57,969 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:48:57,969 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:48:58,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:48:58,032 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;@1825e97c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:48:58,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:48:58,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 92 states have internal predecessors, (111), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-18 19:48:58,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 19:48:58,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:58,049 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] [2022-11-18 19:48:58,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:58,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:58,055 INFO L85 PathProgramCache]: Analyzing trace with hash 155128550, now seen corresponding path program 1 times [2022-11-18 19:48:58,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:58,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536535700] [2022-11-18 19:48:58,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:58,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:48:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:58,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:58,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536535700] [2022-11-18 19:48:58,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536535700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:58,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:58,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:48:58,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26799111] [2022-11-18 19:48:58,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:58,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:48:58,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:48:58,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:48:58,383 INFO L87 Difference]: Start difference. First operand has 112 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 92 states have internal predecessors, (111), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) 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) [2022-11-18 19:48:58,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:58,461 INFO L93 Difference]: Finished difference Result 216 states and 293 transitions. [2022-11-18 19:48:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:48:58,464 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 [2022-11-18 19:48:58,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:58,482 INFO L225 Difference]: With dead ends: 216 [2022-11-18 19:48:58,482 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 19:48:58,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:48:58,491 INFO L413 NwaCegarLoop]: 143 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, 143 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:58,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:48:58,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 19:48:58,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-18 19:48:58,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 84 states have internal predecessors, (97), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-18 19:48:58,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2022-11-18 19:48:58,563 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 134 transitions. Word has length 23 [2022-11-18 19:48:58,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:58,564 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 134 transitions. [2022-11-18 19:48:58,565 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) [2022-11-18 19:48:58,565 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 134 transitions. [2022-11-18 19:48:58,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 19:48:58,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:58,570 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] [2022-11-18 19:48:58,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:48:58,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:58,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:58,572 INFO L85 PathProgramCache]: Analyzing trace with hash -389594040, now seen corresponding path program 1 times [2022-11-18 19:48:58,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:58,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915317685] [2022-11-18 19:48:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:58,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:58,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:48:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:58,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:58,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:58,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915317685] [2022-11-18 19:48:58,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915317685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:58,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:58,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:48:58,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794879329] [2022-11-18 19:48:58,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:58,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:48:58,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:58,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:48:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:48:58,767 INFO L87 Difference]: Start difference. First operand 103 states and 134 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) [2022-11-18 19:48:58,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:58,805 INFO L93 Difference]: Finished difference Result 168 states and 218 transitions. [2022-11-18 19:48:58,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:48:58,807 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 [2022-11-18 19:48:58,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:58,813 INFO L225 Difference]: With dead ends: 168 [2022-11-18 19:48:58,813 INFO L226 Difference]: Without dead ends: 94 [2022-11-18 19:48:58,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:48:58,820 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 16 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:58,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 221 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:48:58,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-18 19:48:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-11-18 19:48:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 78 states have internal predecessors, (90), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-18 19:48:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2022-11-18 19:48:58,839 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 24 [2022-11-18 19:48:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:58,841 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-11-18 19:48:58,842 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) [2022-11-18 19:48:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2022-11-18 19:48:58,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 19:48:58,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:58,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:58,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:48:58,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:58,851 INFO L85 PathProgramCache]: Analyzing trace with hash -2116148500, now seen corresponding path program 1 times [2022-11-18 19:48:58,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:58,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455517689] [2022-11-18 19:48:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:58,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:48:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:58,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:58,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455517689] [2022-11-18 19:48:58,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455517689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:58,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:58,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:48:58,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415211689] [2022-11-18 19:48:58,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:58,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:48:58,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:58,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:48:58,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:48:58,936 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:48:58,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:58,967 INFO L93 Difference]: Finished difference Result 267 states and 352 transitions. [2022-11-18 19:48:58,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:48:58,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 28 [2022-11-18 19:48:58,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:58,970 INFO L225 Difference]: With dead ends: 267 [2022-11-18 19:48:58,970 INFO L226 Difference]: Without dead ends: 180 [2022-11-18 19:48:58,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:48:58,973 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 102 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:58,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 265 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:48:58,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-18 19:48:58,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2022-11-18 19:48:58,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 126 states have (on average 1.3412698412698412) internal successors, (169), 145 states have internal predecessors, (169), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-18 19:48:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 233 transitions. [2022-11-18 19:48:58,998 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 233 transitions. Word has length 28 [2022-11-18 19:48:58,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:58,998 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 233 transitions. [2022-11-18 19:48:58,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:48:58,999 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 233 transitions. [2022-11-18 19:48:59,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 19:48:59,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:59,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:59,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:48:59,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:59,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:59,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1322411102, now seen corresponding path program 1 times [2022-11-18 19:48:59,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:59,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40537617] [2022-11-18 19:48:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:59,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 19:48:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:59,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:59,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40537617] [2022-11-18 19:48:59,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40537617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:59,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:59,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:48:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900690786] [2022-11-18 19:48:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:59,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:48:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:59,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:48:59,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:48:59,178 INFO L87 Difference]: Start difference. First operand 177 states and 233 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:48:59,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:59,325 INFO L93 Difference]: Finished difference Result 461 states and 620 transitions. [2022-11-18 19:48:59,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:48:59,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-18 19:48:59,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:59,333 INFO L225 Difference]: With dead ends: 461 [2022-11-18 19:48:59,333 INFO L226 Difference]: Without dead ends: 291 [2022-11-18 19:48:59,335 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 [2022-11-18 19:48:59,336 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 75 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:59,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 456 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:48:59,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-11-18 19:48:59,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 278. [2022-11-18 19:48:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 201 states have (on average 1.2885572139303483) internal successors, (259), 220 states have internal predecessors, (259), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (54), 37 states have call predecessors, (54), 42 states have call successors, (54) [2022-11-18 19:48:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 355 transitions. [2022-11-18 19:48:59,374 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 355 transitions. Word has length 32 [2022-11-18 19:48:59,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:59,374 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 355 transitions. [2022-11-18 19:48:59,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:48:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 355 transitions. [2022-11-18 19:48:59,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 19:48:59,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:59,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:59,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:48:59,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1980945601, now seen corresponding path program 1 times [2022-11-18 19:48:59,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:59,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540360787] [2022-11-18 19:48:59,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:59,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:48:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:48:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:48:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:48:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 19:48:59,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:59,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540360787] [2022-11-18 19:48:59,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540360787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:59,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:59,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:48:59,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701336730] [2022-11-18 19:48:59,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:59,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:48:59,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:59,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:48:59,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:48:59,553 INFO L87 Difference]: Start difference. First operand 278 states and 355 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:48:59,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:59,848 INFO L93 Difference]: Finished difference Result 619 states and 814 transitions. [2022-11-18 19:48:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:48:59,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-11-18 19:48:59,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:59,856 INFO L225 Difference]: With dead ends: 619 [2022-11-18 19:48:59,856 INFO L226 Difference]: Without dead ends: 348 [2022-11-18 19:48:59,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:48:59,867 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 76 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:59,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 388 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:48:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-18 19:48:59,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 336. [2022-11-18 19:48:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 245 states have (on average 1.2612244897959184) internal successors, (309), 264 states have internal predecessors, (309), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2022-11-18 19:48:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 423 transitions. [2022-11-18 19:48:59,917 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 423 transitions. Word has length 59 [2022-11-18 19:48:59,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:59,918 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 423 transitions. [2022-11-18 19:48:59,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:48:59,918 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 423 transitions. [2022-11-18 19:48:59,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 19:48:59,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:59,920 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:59,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:48:59,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:59,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:59,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1706185987, now seen corresponding path program 1 times [2022-11-18 19:48:59,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:59,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640952107] [2022-11-18 19:48:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:49:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:49:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:49:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 19:49:00,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:00,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640952107] [2022-11-18 19:49:00,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640952107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:00,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:00,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:49:00,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132541041] [2022-11-18 19:49:00,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:00,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:49:00,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:00,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:49:00,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:49:00,056 INFO L87 Difference]: Start difference. First operand 336 states and 423 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:49:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:00,259 INFO L93 Difference]: Finished difference Result 683 states and 886 transitions. [2022-11-18 19:49:00,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:49:00,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-11-18 19:49:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:00,265 INFO L225 Difference]: With dead ends: 683 [2022-11-18 19:49:00,266 INFO L226 Difference]: Without dead ends: 354 [2022-11-18 19:49:00,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:49:00,274 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 80 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:00,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 302 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:49:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-18 19:49:00,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 340. [2022-11-18 19:49:00,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 268 states have internal predecessors, (313), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2022-11-18 19:49:00,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 427 transitions. [2022-11-18 19:49:00,313 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 427 transitions. Word has length 59 [2022-11-18 19:49:00,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:00,313 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 427 transitions. [2022-11-18 19:49:00,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:49:00,314 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 427 transitions. [2022-11-18 19:49:00,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 19:49:00,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:00,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:00,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:49:00,315 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:00,316 INFO L85 PathProgramCache]: Analyzing trace with hash 344798011, now seen corresponding path program 1 times [2022-11-18 19:49:00,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:00,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907951197] [2022-11-18 19:49:00,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:00,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:49:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:49:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:49:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 19:49:00,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:00,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907951197] [2022-11-18 19:49:00,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907951197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:00,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:00,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:49:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732676028] [2022-11-18 19:49:00,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:00,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:49:00,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:49:00,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:49:00,443 INFO L87 Difference]: Start difference. First operand 340 states and 427 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-18 19:49:00,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:00,773 INFO L93 Difference]: Finished difference Result 941 states and 1230 transitions. [2022-11-18 19:49:00,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:49:00,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2022-11-18 19:49:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:00,782 INFO L225 Difference]: With dead ends: 941 [2022-11-18 19:49:00,782 INFO L226 Difference]: Without dead ends: 608 [2022-11-18 19:49:00,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:49:00,785 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 245 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:00,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 335 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:49:00,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-11-18 19:49:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 601. [2022-11-18 19:49:00,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 442 states have (on average 1.2330316742081449) internal successors, (545), 470 states have internal predecessors, (545), 81 states have call successors, (81), 71 states have call predecessors, (81), 77 states have return successors, (133), 82 states have call predecessors, (133), 81 states have call successors, (133) [2022-11-18 19:49:00,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 759 transitions. [2022-11-18 19:49:00,852 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 759 transitions. Word has length 59 [2022-11-18 19:49:00,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:00,854 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 759 transitions. [2022-11-18 19:49:00,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-18 19:49:00,854 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 759 transitions. [2022-11-18 19:49:00,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 19:49:00,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:00,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:00,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:49:00,856 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:00,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash 616558741, now seen corresponding path program 1 times [2022-11-18 19:49:00,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:00,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840709218] [2022-11-18 19:49:00,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:00,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:49:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 19:49:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:49:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:00,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 19:49:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:49:01,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:01,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840709218] [2022-11-18 19:49:01,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840709218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:01,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:01,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:49:01,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737545500] [2022-11-18 19:49:01,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:01,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:49:01,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:49:01,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:49:01,053 INFO L87 Difference]: Start difference. First operand 601 states and 759 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 19:49:02,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:02,038 INFO L93 Difference]: Finished difference Result 2059 states and 2701 transitions. [2022-11-18 19:49:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 19:49:02,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2022-11-18 19:49:02,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:02,049 INFO L225 Difference]: With dead ends: 2059 [2022-11-18 19:49:02,049 INFO L226 Difference]: Without dead ends: 1465 [2022-11-18 19:49:02,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:49:02,053 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 382 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:02,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 362 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:49:02,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-11-18 19:49:02,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1357. [2022-11-18 19:49:02,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 988 states have (on average 1.2044534412955465) internal successors, (1190), 1059 states have internal predecessors, (1190), 194 states have call successors, (194), 142 states have call predecessors, (194), 174 states have return successors, (352), 200 states have call predecessors, (352), 194 states have call successors, (352) [2022-11-18 19:49:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1736 transitions. [2022-11-18 19:49:02,217 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1736 transitions. Word has length 63 [2022-11-18 19:49:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:02,218 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1736 transitions. [2022-11-18 19:49:02,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 19:49:02,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1736 transitions. [2022-11-18 19:49:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-18 19:49:02,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:02,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:02,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:49:02,222 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:02,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:02,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1067655569, now seen corresponding path program 1 times [2022-11-18 19:49:02,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:02,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102657894] [2022-11-18 19:49:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:02,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:49:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 19:49:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:49:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:49:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:49:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:49:02,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:02,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102657894] [2022-11-18 19:49:02,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102657894] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:02,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508557972] [2022-11-18 19:49:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:02,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:02,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:02,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:02,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:49:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:02,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:49:02,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:03,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:49:03,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508557972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:03,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:49:03,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2022-11-18 19:49:03,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734762875] [2022-11-18 19:49:03,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:03,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:49:03,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:03,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:49:03,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:49:03,220 INFO L87 Difference]: Start difference. First operand 1357 states and 1736 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 19:49:03,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:03,501 INFO L93 Difference]: Finished difference Result 2641 states and 3397 transitions. [2022-11-18 19:49:03,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:49:03,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2022-11-18 19:49:03,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:03,509 INFO L225 Difference]: With dead ends: 2641 [2022-11-18 19:49:03,510 INFO L226 Difference]: Without dead ends: 1291 [2022-11-18 19:49:03,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:49:03,515 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 87 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:03,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 823 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:49:03,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-11-18 19:49:03,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1287. [2022-11-18 19:49:03,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 934 states have (on average 1.1927194860813704) internal successors, (1114), 1003 states have internal predecessors, (1114), 188 states have call successors, (188), 138 states have call predecessors, (188), 164 states have return successors, (308), 188 states have call predecessors, (308), 188 states have call successors, (308) [2022-11-18 19:49:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1610 transitions. [2022-11-18 19:49:03,646 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1610 transitions. Word has length 67 [2022-11-18 19:49:03,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:03,646 INFO L495 AbstractCegarLoop]: Abstraction has 1287 states and 1610 transitions. [2022-11-18 19:49:03,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 19:49:03,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1610 transitions. [2022-11-18 19:49:03,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-18 19:49:03,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:03,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:03,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:03,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:03,856 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:03,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:03,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1513239529, now seen corresponding path program 1 times [2022-11-18 19:49:03,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:03,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996537363] [2022-11-18 19:49:03,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:03,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:49:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 19:49:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:49:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:49:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 19:49:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 19:49:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 19:49:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:03,998 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:49:03,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:03,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996537363] [2022-11-18 19:49:03,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996537363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:03,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:03,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:49:03,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23825687] [2022-11-18 19:49:03,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:04,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:49:04,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:04,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:49:04,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:49:04,001 INFO L87 Difference]: Start difference. First operand 1287 states and 1610 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-18 19:49:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:04,604 INFO L93 Difference]: Finished difference Result 1535 states and 1910 transitions. [2022-11-18 19:49:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:49:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 94 [2022-11-18 19:49:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:04,608 INFO L225 Difference]: With dead ends: 1535 [2022-11-18 19:49:04,608 INFO L226 Difference]: Without dead ends: 650 [2022-11-18 19:49:04,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:49:04,611 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 402 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:04,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 202 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:49:04,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-11-18 19:49:04,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 630. [2022-11-18 19:49:04,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 457 states have (on average 1.1575492341356675) internal successors, (529), 489 states have internal predecessors, (529), 91 states have call successors, (91), 68 states have call predecessors, (91), 81 states have return successors, (151), 92 states have call predecessors, (151), 91 states have call successors, (151) [2022-11-18 19:49:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 771 transitions. [2022-11-18 19:49:04,675 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 771 transitions. Word has length 94 [2022-11-18 19:49:04,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:04,676 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 771 transitions. [2022-11-18 19:49:04,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-18 19:49:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 771 transitions. [2022-11-18 19:49:04,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-18 19:49:04,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:04,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:04,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:49:04,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:04,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1984934984, now seen corresponding path program 1 times [2022-11-18 19:49:04,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:04,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337320594] [2022-11-18 19:49:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:04,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:49:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:49:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:49:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:49:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 19:49:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:49:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 19:49:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 19:49:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:49:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 19:49:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:49:04,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:04,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337320594] [2022-11-18 19:49:04,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337320594] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:04,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886630952] [2022-11-18 19:49:04,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:04,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:04,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:04,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:05,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:49:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:05,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:49:05,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:49:05,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:49:05,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886630952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:05,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:49:05,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2022-11-18 19:49:05,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791962607] [2022-11-18 19:49:05,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:05,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:49:05,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:05,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:49:05,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:49:05,269 INFO L87 Difference]: Start difference. First operand 630 states and 771 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 19:49:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:05,445 INFO L93 Difference]: Finished difference Result 1093 states and 1358 transitions. [2022-11-18 19:49:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:49:05,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-11-18 19:49:05,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:05,446 INFO L225 Difference]: With dead ends: 1093 [2022-11-18 19:49:05,447 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:49:05,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:49:05,450 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:05,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 871 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:49:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:49:05,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:49:05,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:05,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:49:05,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2022-11-18 19:49:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:05,453 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:49:05,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 19:49:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:49:05,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:49:05,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:49:05,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:05,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:05,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:49:11,045 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 199 206) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (= 1 ~systemActive~0)) .cse1) (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1 (= 0 ~systemActive~0)))) [2022-11-18 19:49:11,046 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 199 206) no Hoare annotation was computed. [2022-11-18 19:49:11,046 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 199 206) no Hoare annotation was computed. [2022-11-18 19:49:11,046 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2022-11-18 19:49:11,046 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2022-11-18 19:49:11,046 INFO L899 garLoopResultBuilder]: For program point L291-2(lines 291 295) no Hoare annotation was computed. [2022-11-18 19:49:11,046 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-18 19:49:11,047 INFO L895 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-18 19:49:11,047 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2022-11-18 19:49:11,047 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 144) no Hoare annotation was computed. [2022-11-18 19:49:11,047 INFO L895 garLoopResultBuilder]: At program point L986(lines 981 989) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-18 19:49:11,047 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2022-11-18 19:49:11,048 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (not (<= 0 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-18 19:49:11,048 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2022-11-18 19:49:11,048 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 123 147) no Hoare annotation was computed. [2022-11-18 19:49:11,048 INFO L895 garLoopResultBuilder]: At program point L297(lines 282 300) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-18 19:49:11,048 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 295) no Hoare annotation was computed. [2022-11-18 19:49:11,049 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 914 925) the Hoare annotation is: (let ((.cse1 (not (<= |old(~methaneLevelCritical~0)| 0))) (.cse2 (and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))) (.cse3 (not (<= 0 |old(~methaneLevelCritical~0)|))) (.cse5 (not (= 0 ~systemActive~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse7 (not (<= 1 |old(~methaneLevelCritical~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse3 .cse5) (or .cse4 .cse6 .cse7 .cse5) (or .cse4 .cse0 .cse6 .cse7))) [2022-11-18 19:49:11,049 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 914 925) no Hoare annotation was computed. [2022-11-18 19:49:11,049 INFO L899 garLoopResultBuilder]: For program point L918-1(lines 914 925) no Hoare annotation was computed. [2022-11-18 19:49:11,049 INFO L902 garLoopResultBuilder]: At program point L769(line 769) the Hoare annotation is: true [2022-11-18 19:49:11,049 INFO L899 garLoopResultBuilder]: For program point L769-1(line 769) no Hoare annotation was computed. [2022-11-18 19:49:11,050 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 763 792) no Hoare annotation was computed. [2022-11-18 19:49:11,050 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 763 792) the Hoare annotation is: true [2022-11-18 19:49:11,050 INFO L902 garLoopResultBuilder]: At program point L788(lines 763 792) the Hoare annotation is: true [2022-11-18 19:49:11,050 INFO L899 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2022-11-18 19:49:11,050 INFO L899 garLoopResultBuilder]: For program point L777(lines 777 781) no Hoare annotation was computed. [2022-11-18 19:49:11,050 INFO L902 garLoopResultBuilder]: At program point L777-1(lines 777 781) the Hoare annotation is: true [2022-11-18 19:49:11,051 INFO L899 garLoopResultBuilder]: For program point L774(line 774) no Hoare annotation was computed. [2022-11-18 19:49:11,051 INFO L902 garLoopResultBuilder]: At program point L773-2(lines 773 787) the Hoare annotation is: true [2022-11-18 19:49:11,051 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 926 934) the Hoare annotation is: true [2022-11-18 19:49:11,051 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 926 934) no Hoare annotation was computed. [2022-11-18 19:49:11,051 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 926 934) no Hoare annotation was computed. [2022-11-18 19:49:11,051 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (or (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse1 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-18 19:49:11,052 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 898) no Hoare annotation was computed. [2022-11-18 19:49:11,052 INFO L895 garLoopResultBuilder]: At program point L894-2(lines 890 901) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-11-18 19:49:11,052 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-11-18 19:49:11,052 INFO L899 garLoopResultBuilder]: For program point L155-1(line 155) no Hoare annotation was computed. [2022-11-18 19:49:11,053 INFO L895 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0))) [2022-11-18 19:49:11,053 INFO L895 garLoopResultBuilder]: At program point L168-1(lines 149 173) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse3 .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-11-18 19:49:11,053 INFO L899 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2022-11-18 19:49:11,053 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 65 88) no Hoare annotation was computed. [2022-11-18 19:49:11,053 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2022-11-18 19:49:11,054 INFO L895 garLoopResultBuilder]: At program point L392(lines 387 394) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) .cse0))) [2022-11-18 19:49:11,054 INFO L895 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse3 .cse1 .cse2 .cse4) (or .cse3 (and .cse0 .cse4) .cse2 (not (= 0 ~systemActive~0))))) [2022-11-18 19:49:11,054 INFO L899 garLoopResultBuilder]: For program point L867-1(line 867) no Hoare annotation was computed. [2022-11-18 19:49:11,054 INFO L895 garLoopResultBuilder]: At program point L223(lines 218 226) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= 0 ~systemActive~0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~methaneLevelCritical~0 0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6) (or .cse0 .cse5 (and .cse7 .cse8 .cse6) .cse3) (or .cse4 (and .cse7 .cse8) .cse5) (or .cse4 .cse1 .cse2))) [2022-11-18 19:49:11,055 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 165) no Hoare annotation was computed. [2022-11-18 19:49:11,055 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 170) no Hoare annotation was computed. [2022-11-18 19:49:11,055 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (= 0 ~systemActive~0))))) [2022-11-18 19:49:11,055 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2022-11-18 19:49:11,055 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2022-11-18 19:49:11,056 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2022-11-18 19:49:11,056 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2022-11-18 19:49:11,056 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 882) no Hoare annotation was computed. [2022-11-18 19:49:11,056 INFO L895 garLoopResultBuilder]: At program point L869-1(lines 861 885) the Hoare annotation is: (let ((.cse10 (= 1 ~systemActive~0))) (let ((.cse4 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse9 (not .cse10)) (.cse7 (not (<= ~methaneLevelCritical~0 0))) (.cse8 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 1))) (.cse6 (<= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4) (or .cse0 (and .cse1 .cse5 .cse2 .cse6) .cse7 .cse8 .cse4) (or .cse0 .cse9 .cse8 .cse2) (or .cse9 .cse3 (and .cse1 .cse10)) (or .cse9 (and (<= 2 ~waterLevel~0) .cse5 .cse6) .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse6) .cse8 (and .cse1 .cse10 .cse5 .cse6))))) [2022-11-18 19:49:11,057 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-11-18 19:49:11,057 INFO L895 garLoopResultBuilder]: At program point L378(lines 329 379) the Hoare annotation is: false [2022-11-18 19:49:11,057 INFO L895 garLoopResultBuilder]: At program point L1006(lines 1002 1008) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-18 19:49:11,057 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 372) no Hoare annotation was computed. [2022-11-18 19:49:11,057 INFO L895 garLoopResultBuilder]: At program point L366-2(lines 360 373) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (<= 0 ~methaneLevelCritical~0))) (or (and (= 1 ~systemActive~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= 0 ~systemActive~0)))) [2022-11-18 19:49:11,057 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:49:11,058 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 356) no Hoare annotation was computed. [2022-11-18 19:49:11,058 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:49:11,058 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2022-11-18 19:49:11,058 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:49:11,058 INFO L895 garLoopResultBuilder]: At program point L313(lines 301 315) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~methaneLevelCritical~0) (= 0 ~systemActive~0)) [2022-11-18 19:49:11,059 INFO L895 garLoopResultBuilder]: At program point L375(lines 330 377) the Hoare annotation is: (let ((.cse2 (<= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-18 19:49:11,059 INFO L895 garLoopResultBuilder]: At program point L342(line 342) the Hoare annotation is: (let ((.cse2 (<= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-18 19:49:11,059 INFO L895 garLoopResultBuilder]: At program point L821(lines 817 823) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-18 19:49:11,059 INFO L899 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2022-11-18 19:49:11,059 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2022-11-18 19:49:11,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:49:11,060 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 854) no Hoare annotation was computed. [2022-11-18 19:49:11,060 INFO L899 garLoopResultBuilder]: For program point L847-2(lines 847 854) no Hoare annotation was computed. [2022-11-18 19:49:11,060 INFO L899 garLoopResultBuilder]: For program point L331(lines 330 377) no Hoare annotation was computed. [2022-11-18 19:49:11,060 INFO L899 garLoopResultBuilder]: For program point L360(lines 360 373) no Hoare annotation was computed. [2022-11-18 19:49:11,060 INFO L895 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse2 (<= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-18 19:49:11,060 INFO L902 garLoopResultBuilder]: At program point L831(lines 824 833) the Hoare annotation is: true [2022-11-18 19:49:11,061 INFO L895 garLoopResultBuilder]: At program point L1021(lines 1016 1024) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-18 19:49:11,061 INFO L902 garLoopResultBuilder]: At program point L381(lines 320 385) the Hoare annotation is: true [2022-11-18 19:49:11,061 INFO L902 garLoopResultBuilder]: At program point L856(lines 837 859) the Hoare annotation is: true [2022-11-18 19:49:11,061 INFO L895 garLoopResultBuilder]: At program point L1013(lines 1009 1015) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2022-11-18 19:49:11,061 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 346) no Hoare annotation was computed. [2022-11-18 19:49:11,062 INFO L899 garLoopResultBuilder]: For program point L340-1(lines 340 346) no Hoare annotation was computed. [2022-11-18 19:49:11,062 INFO L895 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (<= 0 ~methaneLevelCritical~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= 1 ~systemActive~0) .cse0 .cse1))) [2022-11-18 19:49:11,062 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 336) no Hoare annotation was computed. [2022-11-18 19:49:11,062 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 97 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2022-11-18 19:49:11,062 INFO L895 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-18 19:49:11,063 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2022-11-18 19:49:11,063 INFO L899 garLoopResultBuilder]: For program point L971(lines 971 977) no Hoare annotation was computed. [2022-11-18 19:49:11,063 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 195) no Hoare annotation was computed. [2022-11-18 19:49:11,063 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2022-11-18 19:49:11,063 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2)) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2022-11-18 19:49:11,064 INFO L895 garLoopResultBuilder]: At program point L189-2(lines 182 198) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (<= 2 ~waterLevel~0))) (and (or (and (= ~pumpRunning~0 0) (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~3#1|) .cse0) (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse1 .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2022-11-18 19:49:11,064 INFO L899 garLoopResultBuilder]: For program point L187-1(line 187) no Hoare annotation was computed. [2022-11-18 19:49:11,064 INFO L895 garLoopResultBuilder]: At program point L278(lines 263 281) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0))) (let ((.cse0 (and .cse2 .cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse4))))) [2022-11-18 19:49:11,064 INFO L895 garLoopResultBuilder]: At program point L179(lines 174 181) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (<= 2 ~waterLevel~0) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-18 19:49:11,065 INFO L895 garLoopResultBuilder]: At program point L976(lines 967 980) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|)) (.cse1 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2) (and .cse3 .cse1)) (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or .cse0 (and .cse4 .cse1 .cse2) (and .cse3 .cse4 .cse1) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)))))) [2022-11-18 19:49:11,065 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 276) no Hoare annotation was computed. [2022-11-18 19:49:11,065 INFO L895 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) .cse2)) (.cse1 (not .cse2))) (and (or .cse0 .cse1 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)))))) [2022-11-18 19:49:11,065 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 276) no Hoare annotation was computed. [2022-11-18 19:49:11,065 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2022-11-18 19:49:11,066 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 118) no Hoare annotation was computed. [2022-11-18 19:49:11,066 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 902 913) no Hoare annotation was computed. [2022-11-18 19:49:11,066 INFO L899 garLoopResultBuilder]: For program point L906-1(lines 902 913) no Hoare annotation was computed. [2022-11-18 19:49:11,066 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 902 913) the Hoare annotation is: (let ((.cse1 (not (<= 0 ~methaneLevelCritical~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 (not (<= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or .cse0 .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2022-11-18 19:49:11,066 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 207 217) the Hoare annotation is: true [2022-11-18 19:49:11,067 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 207 217) no Hoare annotation was computed. [2022-11-18 19:49:11,067 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 207 217) no Hoare annotation was computed. [2022-11-18 19:49:11,067 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2022-11-18 19:49:11,067 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2022-11-18 19:49:11,070 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:11,073 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:49:11,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:49:11 BoogieIcfgContainer [2022-11-18 19:49:11,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:49:11,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:49:11,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:49:11,097 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:49:11,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:57" (3/4) ... [2022-11-18 19:49:11,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:49:11,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-18 19:49:11,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-18 19:49:11,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-18 19:49:11,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-18 19:49:11,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-18 19:49:11,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-18 19:49:11,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 19:49:11,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-18 19:49:11,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-18 19:49:11,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-18 19:49:11,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-18 19:49:11,130 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 19:49:11,130 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:49:11,131 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:49:11,131 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:49:11,162 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2022-11-18 19:49:11,163 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) [2022-11-18 19:49:11,165 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || !(0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 0 < tmp + 1) && \old(waterLevel) == waterLevel) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 1 == systemActive))) && (((((!(1 == systemActive) || ((2 <= waterLevel && 0 < tmp + 1) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || ((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == 0 && 1 == systemActive) && 0 < tmp + 1) && tmp <= 0)) [2022-11-18 19:49:11,166 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((!(1 == systemActive) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-18 19:49:11,166 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && methaneLevelCritical <= tmp) && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-18 19:49:11,167 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) [2022-11-18 19:49:11,167 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-18 19:49:11,167 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0)) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || ((1 <= \result && pumpRunning == \old(pumpRunning)) && pumpRunning == 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-18 19:49:11,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (!(1 == systemActive) || !(0 <= methaneLevelCritical)) [2022-11-18 19:49:11,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-18 19:49:11,172 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && tmp___0 == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) [2022-11-18 19:49:11,223 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:49:11,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:49:11,224 INFO L158 Benchmark]: Toolchain (without parser) took 14540.98ms. Allocated memory was 138.4MB in the beginning and 243.3MB in the end (delta: 104.9MB). Free memory was 108.1MB in the beginning and 103.8MB in the end (delta: 4.3MB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. [2022-11-18 19:49:11,224 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:49:11,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.04ms. Allocated memory is still 138.4MB. Free memory was 107.8MB in the beginning and 108.2MB in the end (delta: -380.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:49:11,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.65ms. Allocated memory is still 138.4MB. Free memory was 108.2MB in the beginning and 105.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:49:11,225 INFO L158 Benchmark]: Boogie Preprocessor took 28.75ms. Allocated memory is still 138.4MB. Free memory was 105.8MB in the beginning and 104.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:49:11,226 INFO L158 Benchmark]: RCFGBuilder took 690.92ms. Allocated memory is still 138.4MB. Free memory was 104.0MB in the beginning and 86.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 19:49:11,226 INFO L158 Benchmark]: TraceAbstraction took 13154.67ms. Allocated memory was 138.4MB in the beginning and 243.3MB in the end (delta: 104.9MB). Free memory was 85.9MB in the beginning and 110.1MB in the end (delta: -24.2MB). Peak memory consumption was 119.4MB. Max. memory is 16.1GB. [2022-11-18 19:49:11,227 INFO L158 Benchmark]: Witness Printer took 126.76ms. Allocated memory is still 243.3MB. Free memory was 110.1MB in the beginning and 103.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 19:49:11,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.04ms. Allocated memory is still 138.4MB. Free memory was 107.8MB in the beginning and 108.2MB in the end (delta: -380.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.65ms. Allocated memory is still 138.4MB. Free memory was 108.2MB in the beginning and 105.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.75ms. Allocated memory is still 138.4MB. Free memory was 105.8MB in the beginning and 104.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 690.92ms. Allocated memory is still 138.4MB. Free memory was 104.0MB in the beginning and 86.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13154.67ms. Allocated memory was 138.4MB in the beginning and 243.3MB in the end (delta: 104.9MB). Free memory was 85.9MB in the beginning and 110.1MB in the end (delta: -24.2MB). Peak memory consumption was 119.4MB. Max. memory is 16.1GB. * Witness Printer took 126.76ms. Allocated memory is still 243.3MB. Free memory was 110.1MB in the beginning and 103.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 112 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1588 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1540 mSDsluCounter, 4368 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2955 mSDsCounter, 474 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1857 IncrementalHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 474 mSolverCounterUnsat, 1413 mSDtfsCounter, 1857 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1357occurred in iteration=8, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 181 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 2590 PreInvPairs, 2875 NumberOfFragments, 1584 HoareAnnotationTreeSize, 2590 FomulaSimplifications, 1339 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 51 FomulaSimplificationsInter, 15668 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 804 ConstructedInterpolants, 0 QuantifiedInterpolants, 1618 SizeOfPredicates, 6 NumberOfNonLiveVariables, 637 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 124/138 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: ((((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((!(1 == systemActive) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 1016]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: (((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && tmp___0 == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && 0 <= methaneLevelCritical) && 0 == systemActive - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || !(0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 0 < tmp + 1) && \old(waterLevel) == waterLevel) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 1 == systemActive))) && (((((!(1 == systemActive) || ((2 <= waterLevel && 0 < tmp + 1) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || ((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == 0 && 1 == systemActive) && 0 < tmp + 1) && tmp <= 0)) - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (!(1 == systemActive) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methaneLevelCritical <= tmp) && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: ((((1 == systemActive && methaneLevelCritical <= 0) && splverifierCounter == 0) && 0 <= methaneLevelCritical) || (((pumpRunning == 0 && splverifierCounter == 0) && 0 <= methaneLevelCritical) && 0 == systemActive)) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 1009]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 1002]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0)) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || ((1 <= \result && pumpRunning == \old(pumpRunning)) && pumpRunning == 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 19:49:11,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4e7170-832c-41d4-930f-f169cbdc3c89/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE