./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc --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 c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 --- 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-5e519f3 [2022-11-02 20:17:44,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:17:44,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:17:44,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:17:44,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:17:44,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:17:44,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:17:44,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:17:44,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:17:44,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:17:44,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:17:44,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:17:44,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:17:44,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:17:44,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:17:44,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:17:44,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:17:44,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:17:44,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:17:44,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:17:44,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:17:44,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:17:44,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:17:44,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:17:44,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:17:44,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:17:44,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:17:44,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:17:44,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:17:44,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:17:44,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:17:44,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:17:44,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:17:44,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:17:44,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:17:44,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:17:44,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:17:44,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:17:44,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:17:44,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:17:44,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:17:44,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:17:44,159 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:17:44,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:17:44,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:17:44,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:17:44,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:17:44,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:17:44,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:17:44,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:17:44,165 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:17:44,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:17:44,166 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:17:44,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:17:44,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:17:44,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:17:44,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:17:44,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:17:44,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:17:44,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:17:44,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:17:44,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:17:44,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:17:44,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:17:44,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:17:44,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:17:44,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:44,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:17:44,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:17:44,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:17:44,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:17:44,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:17:44,173 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:17:44,173 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:17:44,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:17:44,174 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_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 [2022-11-02 20:17:44,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:17:44,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:17:44,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:17:44,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:17:44,517 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:17:44,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2022-11-02 20:17:44,593 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/data/9ce1ccb91/c9cce913698c4b4abdde58eddc8dc411/FLAG452b84e0f [2022-11-02 20:17:45,242 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:17:45,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2022-11-02 20:17:45,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/data/9ce1ccb91/c9cce913698c4b4abdde58eddc8dc411/FLAG452b84e0f [2022-11-02 20:17:45,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/data/9ce1ccb91/c9cce913698c4b4abdde58eddc8dc411 [2022-11-02 20:17:45,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:17:45,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:17:45,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:45,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:17:45,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:17:45,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:45" (1/1) ... [2022-11-02 20:17:45,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fd0602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:45, skipping insertion in model container [2022-11-02 20:17:45,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:45" (1/1) ... [2022-11-02 20:17:45,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:17:45,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:17:45,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2022-11-02 20:17:45,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:45,942 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:17:45,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2022-11-02 20:17:46,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:46,073 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:17:46,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46 WrapperNode [2022-11-02 20:17:46,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:46,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:46,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:17:46,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:17:46,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,129 INFO L138 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 276 [2022-11-02 20:17:46,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:46,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:17:46,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:17:46,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:17:46,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:17:46,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:17:46,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:17:46,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:17:46,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (1/1) ... [2022-11-02 20:17:46,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:46,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:46,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:46,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:17:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:17:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-02 20:17:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-02 20:17:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-02 20:17:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-02 20:17:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-02 20:17:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-02 20:17:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-02 20:17:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-02 20:17:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-02 20:17:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-02 20:17:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-02 20:17:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-02 20:17:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-02 20:17:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-02 20:17:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-02 20:17:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-02 20:17:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-02 20:17:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-02 20:17:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:17:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-02 20:17:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-02 20:17:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:17:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:17:46,378 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:17:46,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:17:46,834 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:17:46,842 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:17:46,842 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:17:46,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:46 BoogieIcfgContainer [2022-11-02 20:17:46,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:17:46,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:17:46,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:17:46,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:17:46,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:17:45" (1/3) ... [2022-11-02 20:17:46,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249de81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:46, skipping insertion in model container [2022-11-02 20:17:46,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:46" (2/3) ... [2022-11-02 20:17:46,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249de81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:46, skipping insertion in model container [2022-11-02 20:17:46,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:46" (3/3) ... [2022-11-02 20:17:46,856 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2022-11-02 20:17:46,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:17:46,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:17:46,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:17:46,961 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;@7b50bc43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:17:46,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:17:46,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 82 states have (on average 1.3658536585365855) internal successors, (112), 93 states have internal predecessors, (112), 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) [2022-11-02 20:17:46,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 20:17:46,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:46,983 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] [2022-11-02 20:17:46,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:46,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:46,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1906157068, now seen corresponding path program 1 times [2022-11-02 20:17:46,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:47,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575560055] [2022-11-02 20:17:47,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:47,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:17:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:47,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:47,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575560055] [2022-11-02 20:17:47,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575560055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:47,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:47,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:17:47,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805962953] [2022-11-02 20:17:47,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:47,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:17:47,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:47,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:17:47,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:17:47,356 INFO L87 Difference]: Start difference. First operand has 113 states, 82 states have (on average 1.3658536585365855) internal successors, (112), 93 states have internal predecessors, (112), 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) [2022-11-02 20:17:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:47,440 INFO L93 Difference]: Finished difference Result 218 states and 295 transitions. [2022-11-02 20:17:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:17:47,445 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 [2022-11-02 20:17:47,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:47,460 INFO L225 Difference]: With dead ends: 218 [2022-11-02 20:17:47,461 INFO L226 Difference]: Without dead ends: 104 [2022-11-02 20:17:47,466 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 [2022-11-02 20:17:47,472 INFO L413 NwaCegarLoop]: 144 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, 144 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 [2022-11-02 20:17:47,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:17:47,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-02 20:17:47,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-11-02 20:17:47,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 85 states have internal predecessors, (98), 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) [2022-11-02 20:17:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2022-11-02 20:17:47,558 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 23 [2022-11-02 20:17:47,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:47,558 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2022-11-02 20:17:47,559 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) [2022-11-02 20:17:47,560 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2022-11-02 20:17:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-02 20:17:47,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:47,565 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] [2022-11-02 20:17:47,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:17:47,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:47,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:47,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1844087638, now seen corresponding path program 1 times [2022-11-02 20:17:47,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:47,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49343511] [2022-11-02 20:17:47,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:47,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 20:17:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:47,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:47,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49343511] [2022-11-02 20:17:47,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49343511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:47,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:47,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:17:47,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029703209] [2022-11-02 20:17:47,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:47,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:17:47,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:47,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:17:47,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:17:47,742 INFO L87 Difference]: Start difference. First operand 104 states and 135 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) [2022-11-02 20:17:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:47,762 INFO L93 Difference]: Finished difference Result 169 states and 219 transitions. [2022-11-02 20:17:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:17:47,763 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 [2022-11-02 20:17:47,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:47,765 INFO L225 Difference]: With dead ends: 169 [2022-11-02 20:17:47,765 INFO L226 Difference]: Without dead ends: 95 [2022-11-02 20:17:47,766 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 [2022-11-02 20:17:47,767 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 17 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 222 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 [2022-11-02 20:17:47,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 222 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:17:47,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-02 20:17:47,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-11-02 20:17:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 69 states have (on average 1.318840579710145) internal successors, (91), 79 states have internal predecessors, (91), 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) [2022-11-02 20:17:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 123 transitions. [2022-11-02 20:17:47,780 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 123 transitions. Word has length 24 [2022-11-02 20:17:47,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:47,780 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 123 transitions. [2022-11-02 20:17:47,780 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) [2022-11-02 20:17:47,780 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2022-11-02 20:17:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 20:17:47,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:47,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:47,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:17:47,783 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:47,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:47,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1533698931, now seen corresponding path program 1 times [2022-11-02 20:17:47,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:47,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872447685] [2022-11-02 20:17:47,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:47,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:17:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:47,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:47,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872447685] [2022-11-02 20:17:47,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872447685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:47,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:47,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:47,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776444192] [2022-11-02 20:17:47,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:47,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:17:47,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:47,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:17:47,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:17:47,973 INFO L87 Difference]: Start difference. First operand 95 states and 123 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:17:48,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:48,098 INFO L93 Difference]: Finished difference Result 225 states and 294 transitions. [2022-11-02 20:17:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:48,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-02 20:17:48,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:48,101 INFO L225 Difference]: With dead ends: 225 [2022-11-02 20:17:48,101 INFO L226 Difference]: Without dead ends: 137 [2022-11-02 20:17:48,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:17:48,104 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 186 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:48,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 399 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:17:48,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-02 20:17:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-11-02 20:17:48,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 98 states have (on average 1.336734693877551) internal successors, (131), 111 states have internal predecessors, (131), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-02 20:17:48,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 174 transitions. [2022-11-02 20:17:48,127 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 174 transitions. Word has length 29 [2022-11-02 20:17:48,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:48,128 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 174 transitions. [2022-11-02 20:17:48,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:17:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 174 transitions. [2022-11-02 20:17:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:17:48,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:48,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:48,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:17:48,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:48,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:48,131 INFO L85 PathProgramCache]: Analyzing trace with hash 521603362, now seen corresponding path program 1 times [2022-11-02 20:17:48,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:48,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957733186] [2022-11-02 20:17:48,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:48,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 20:17:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:48,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:48,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957733186] [2022-11-02 20:17:48,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957733186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:48,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:48,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:48,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171246414] [2022-11-02 20:17:48,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:48,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:17:48,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:17:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:17:48,359 INFO L87 Difference]: Start difference. First operand 134 states and 174 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) [2022-11-02 20:17:48,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:48,520 INFO L93 Difference]: Finished difference Result 316 states and 423 transitions. [2022-11-02 20:17:48,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:48,521 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 [2022-11-02 20:17:48,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:48,523 INFO L225 Difference]: With dead ends: 316 [2022-11-02 20:17:48,524 INFO L226 Difference]: Without dead ends: 189 [2022-11-02 20:17:48,525 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 [2022-11-02 20:17:48,535 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 76 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 459 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 [2022-11-02 20:17:48,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 459 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:17:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-02 20:17:48,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 179. [2022-11-02 20:17:48,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 132 states have (on average 1.2727272727272727) internal successors, (168), 144 states have internal predecessors, (168), 25 states have call successors, (25), 21 states have call predecessors, (25), 21 states have return successors, (33), 23 states have call predecessors, (33), 25 states have call successors, (33) [2022-11-02 20:17:48,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 226 transitions. [2022-11-02 20:17:48,577 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 226 transitions. Word has length 32 [2022-11-02 20:17:48,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:48,577 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 226 transitions. [2022-11-02 20:17:48,578 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) [2022-11-02 20:17:48,578 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 226 transitions. [2022-11-02 20:17:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-02 20:17:48,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:48,580 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] [2022-11-02 20:17:48,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:17:48,580 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:48,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2031492755, now seen corresponding path program 1 times [2022-11-02 20:17:48,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:48,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380004050] [2022-11-02 20:17:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 20:17:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:17:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-02 20:17:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:17:48,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:48,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380004050] [2022-11-02 20:17:48,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380004050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:48,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:48,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:17:48,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161592990] [2022-11-02 20:17:48,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:48,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:48,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:48,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:48,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:48,735 INFO L87 Difference]: Start difference. First operand 179 states and 226 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:17:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:49,030 INFO L93 Difference]: Finished difference Result 411 states and 534 transitions. [2022-11-02 20:17:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:17:49,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (6), 3 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 63 [2022-11-02 20:17:49,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:49,033 INFO L225 Difference]: With dead ends: 411 [2022-11-02 20:17:49,034 INFO L226 Difference]: Without dead ends: 239 [2022-11-02 20:17:49,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:17:49,036 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 153 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:49,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 500 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:17:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-02 20:17:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 207. [2022-11-02 20:17:49,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 153 states have (on average 1.2483660130718954) internal successors, (191), 165 states have internal predecessors, (191), 27 states have call successors, (27), 21 states have call predecessors, (27), 26 states have return successors, (38), 29 states have call predecessors, (38), 27 states have call successors, (38) [2022-11-02 20:17:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 256 transitions. [2022-11-02 20:17:49,063 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 256 transitions. Word has length 63 [2022-11-02 20:17:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:49,064 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 256 transitions. [2022-11-02 20:17:49,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:17:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 256 transitions. [2022-11-02 20:17:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-02 20:17:49,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:49,066 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] [2022-11-02 20:17:49,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:17:49,066 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:49,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:49,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1964006790, now seen corresponding path program 1 times [2022-11-02 20:17:49,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:49,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685716919] [2022-11-02 20:17:49,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:49,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:17:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:17:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:17:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:17:49,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:49,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685716919] [2022-11-02 20:17:49,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685716919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:49,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:49,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651490533] [2022-11-02 20:17:49,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:49,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:17:49,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:49,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:17:49,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:17:49,268 INFO L87 Difference]: Start difference. First operand 207 states and 256 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-11-02 20:17:49,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:49,710 INFO L93 Difference]: Finished difference Result 691 states and 903 transitions. [2022-11-02 20:17:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:17:49,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 60 [2022-11-02 20:17:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:49,719 INFO L225 Difference]: With dead ends: 691 [2022-11-02 20:17:49,719 INFO L226 Difference]: Without dead ends: 491 [2022-11-02 20:17:49,721 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 [2022-11-02 20:17:49,728 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 290 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:49,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 402 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:17:49,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-11-02 20:17:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 484. [2022-11-02 20:17:49,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 359 states have (on average 1.2367688022284122) internal successors, (444), 384 states have internal predecessors, (444), 63 states have call successors, (63), 55 states have call predecessors, (63), 61 states have return successors, (107), 66 states have call predecessors, (107), 63 states have call successors, (107) [2022-11-02 20:17:49,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 614 transitions. [2022-11-02 20:17:49,837 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 614 transitions. Word has length 60 [2022-11-02 20:17:49,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:49,838 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 614 transitions. [2022-11-02 20:17:49,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-11-02 20:17:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 614 transitions. [2022-11-02 20:17:49,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-02 20:17:49,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:49,842 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] [2022-11-02 20:17:49,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:17:49,842 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:49,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:49,843 INFO L85 PathProgramCache]: Analyzing trace with hash -361736822, now seen corresponding path program 1 times [2022-11-02 20:17:49,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:49,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671798387] [2022-11-02 20:17:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:49,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:17:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:17:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:17:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:17:49,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:49,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671798387] [2022-11-02 20:17:49,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671798387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:49,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:49,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:17:49,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220935815] [2022-11-02 20:17:49,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:49,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:49,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:49,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:49,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:49,972 INFO L87 Difference]: Start difference. First operand 484 states and 614 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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) [2022-11-02 20:17:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:50,230 INFO L93 Difference]: Finished difference Result 981 states and 1272 transitions. [2022-11-02 20:17:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:17:50,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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 60 [2022-11-02 20:17:50,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:50,235 INFO L225 Difference]: With dead ends: 981 [2022-11-02 20:17:50,235 INFO L226 Difference]: Without dead ends: 504 [2022-11-02 20:17:50,237 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 [2022-11-02 20:17:50,238 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 77 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:50,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 405 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:17:50,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-02 20:17:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 490. [2022-11-02 20:17:50,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 365 states have (on average 1.2328767123287672) internal successors, (450), 390 states have internal predecessors, (450), 63 states have call successors, (63), 55 states have call predecessors, (63), 61 states have return successors, (107), 66 states have call predecessors, (107), 63 states have call successors, (107) [2022-11-02 20:17:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 620 transitions. [2022-11-02 20:17:50,288 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 620 transitions. Word has length 60 [2022-11-02 20:17:50,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:50,288 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 620 transitions. [2022-11-02 20:17:50,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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) [2022-11-02 20:17:50,289 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 620 transitions. [2022-11-02 20:17:50,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-02 20:17:50,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:50,291 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] [2022-11-02 20:17:50,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:17:50,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:50,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:50,292 INFO L85 PathProgramCache]: Analyzing trace with hash -86977208, now seen corresponding path program 1 times [2022-11-02 20:17:50,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:50,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769561849] [2022-11-02 20:17:50,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:50,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:17:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:17:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:17:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:17:50,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:50,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769561849] [2022-11-02 20:17:50,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769561849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:50,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:50,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:17:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290029395] [2022-11-02 20:17:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:50,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:17:50,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:50,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:17:50,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:17:50,471 INFO L87 Difference]: Start difference. First operand 490 states and 620 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-11-02 20:17:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:50,739 INFO L93 Difference]: Finished difference Result 893 states and 1141 transitions. [2022-11-02 20:17:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:17:50,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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 60 [2022-11-02 20:17:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:50,742 INFO L225 Difference]: With dead ends: 893 [2022-11-02 20:17:50,742 INFO L226 Difference]: Without dead ends: 410 [2022-11-02 20:17:50,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:17:50,745 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 119 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:50,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 440 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:17:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-02 20:17:50,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 408. [2022-11-02 20:17:50,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 304 states have (on average 1.2236842105263157) internal successors, (372), 324 states have internal predecessors, (372), 53 states have call successors, (53), 48 states have call predecessors, (53), 50 states have return successors, (80), 53 states have call predecessors, (80), 53 states have call successors, (80) [2022-11-02 20:17:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 505 transitions. [2022-11-02 20:17:50,794 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 505 transitions. Word has length 60 [2022-11-02 20:17:50,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:50,794 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 505 transitions. [2022-11-02 20:17:50,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-11-02 20:17:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 505 transitions. [2022-11-02 20:17:50,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-02 20:17:50,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:50,797 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] [2022-11-02 20:17:50,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:17:50,797 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1271229164, now seen corresponding path program 1 times [2022-11-02 20:17:50,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:50,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872199748] [2022-11-02 20:17:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:17:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:17:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:51,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:17:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:51,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-02 20:17:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:51,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:17:51,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:51,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872199748] [2022-11-02 20:17:51,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872199748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:51,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:51,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:17:51,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979682607] [2022-11-02 20:17:51,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:51,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:17:51,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:51,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:17:51,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:17:51,046 INFO L87 Difference]: Start difference. First operand 408 states and 505 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 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) [2022-11-02 20:17:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:51,954 INFO L93 Difference]: Finished difference Result 1354 states and 1734 transitions. [2022-11-02 20:17:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-02 20:17:51,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 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 64 [2022-11-02 20:17:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:51,961 INFO L225 Difference]: With dead ends: 1354 [2022-11-02 20:17:51,961 INFO L226 Difference]: Without dead ends: 953 [2022-11-02 20:17:51,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:17:51,964 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 364 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:51,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 410 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:17:51,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-11-02 20:17:52,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 887. [2022-11-02 20:17:52,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 652 states have (on average 1.1947852760736197) internal successors, (779), 701 states have internal predecessors, (779), 122 states have call successors, (122), 96 states have call predecessors, (122), 112 states have return successors, (206), 124 states have call predecessors, (206), 122 states have call successors, (206) [2022-11-02 20:17:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1107 transitions. [2022-11-02 20:17:52,085 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1107 transitions. Word has length 64 [2022-11-02 20:17:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:52,085 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1107 transitions. [2022-11-02 20:17:52,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 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) [2022-11-02 20:17:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1107 transitions. [2022-11-02 20:17:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-02 20:17:52,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:52,088 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, 1] [2022-11-02 20:17:52,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:17:52,088 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:52,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2077759664, now seen corresponding path program 1 times [2022-11-02 20:17:52,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:52,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76168102] [2022-11-02 20:17:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:52,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:17:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-02 20:17:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 20:17:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:17:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 20:17:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:17:52,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:52,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76168102] [2022-11-02 20:17:52,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76168102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:17:52,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173667421] [2022-11-02 20:17:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:52,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:17:52,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:52,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:17:52,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:17:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:52,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:17:52,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:53,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:53,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173667421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:53,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:17:53,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2022-11-02 20:17:53,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718704877] [2022-11-02 20:17:53,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:53,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:17:53,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:53,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:17:53,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:17:53,033 INFO L87 Difference]: Start difference. First operand 887 states and 1107 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 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) [2022-11-02 20:17:53,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:53,331 INFO L93 Difference]: Finished difference Result 1734 states and 2173 transitions. [2022-11-02 20:17:53,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:17:53,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 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 68 [2022-11-02 20:17:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:53,338 INFO L225 Difference]: With dead ends: 1734 [2022-11-02 20:17:53,338 INFO L226 Difference]: Without dead ends: 854 [2022-11-02 20:17:53,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:17:53,344 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 83 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:53,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1164 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:17:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-11-02 20:17:53,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 852. [2022-11-02 20:17:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 625 states have (on average 1.1808) internal successors, (738), 673 states have internal predecessors, (738), 119 states have call successors, (119), 94 states have call predecessors, (119), 107 states have return successors, (181), 118 states have call predecessors, (181), 119 states have call successors, (181) [2022-11-02 20:17:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1038 transitions. [2022-11-02 20:17:53,429 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1038 transitions. Word has length 68 [2022-11-02 20:17:53,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:53,429 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1038 transitions. [2022-11-02 20:17:53,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 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) [2022-11-02 20:17:53,430 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1038 transitions. [2022-11-02 20:17:53,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-02 20:17:53,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:17:53,440 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, 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] [2022-11-02 20:17:53,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:53,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:17:53,663 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:17:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash 963454430, now seen corresponding path program 1 times [2022-11-02 20:17:53,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:53,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094599580] [2022-11-02 20:17:53,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:53,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:17:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:17:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:17:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:17:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:17:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:17:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 20:17:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:17:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:54,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:17:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:17:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:17:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:54,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:17:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:54,053 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-02 20:17:54,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:54,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094599580] [2022-11-02 20:17:54,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094599580] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:17:54,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507767811] [2022-11-02 20:17:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:54,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:17:54,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:54,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:17:54,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:17:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:54,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:17:54,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:17:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 20:17:54,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:17:54,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507767811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:54,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:17:54,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2022-11-02 20:17:54,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425649955] [2022-11-02 20:17:54,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:54,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:17:54,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:54,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:17:54,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:17:54,360 INFO L87 Difference]: Start difference. First operand 852 states and 1038 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 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) [2022-11-02 20:17:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:54,578 INFO L93 Difference]: Finished difference Result 1467 states and 1811 transitions. [2022-11-02 20:17:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:17:54,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 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 123 [2022-11-02 20:17:54,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:17:54,580 INFO L225 Difference]: With dead ends: 1467 [2022-11-02 20:17:54,580 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:17:54,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:17:54,584 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 81 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:17:54,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1180 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:17:54,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:17:54,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:17:54,585 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) [2022-11-02 20:17:54,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:17:54,585 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2022-11-02 20:17:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:17:54,586 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:17:54,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 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) [2022-11-02 20:17:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:17:54,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:17:54,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:17:54,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:17:54,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:17:54,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 20:17:59,436 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 737 744) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 0 ~methaneLevelCritical~0)) (= 0 ~systemActive~0)) [2022-11-02 20:17:59,436 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 737 744) no Hoare annotation was computed. [2022-11-02 20:17:59,436 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 737 744) no Hoare annotation was computed. [2022-11-02 20:17:59,437 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 627 633) no Hoare annotation was computed. [2022-11-02 20:17:59,437 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 627 633) the Hoare annotation is: true [2022-11-02 20:17:59,437 INFO L895 garLoopResultBuilder]: At program point L671(line 671) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-02 20:17:59,437 INFO L899 garLoopResultBuilder]: For program point L669(lines 669 677) no Hoare annotation was computed. [2022-11-02 20:17:59,438 INFO L899 garLoopResultBuilder]: For program point L665(lines 665 682) no Hoare annotation was computed. [2022-11-02 20:17:59,438 INFO L895 garLoopResultBuilder]: At program point L680(line 680) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (<= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 0 ~methaneLevelCritical~0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-02 20:17:59,438 INFO L899 garLoopResultBuilder]: For program point L680-1(lines 661 685) no Hoare annotation was computed. [2022-11-02 20:17:59,438 INFO L895 garLoopResultBuilder]: At program point L835(lines 820 838) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-02 20:17:59,439 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 833) no Hoare annotation was computed. [2022-11-02 20:17:59,439 INFO L899 garLoopResultBuilder]: For program point L829-2(lines 829 833) no Hoare annotation was computed. [2022-11-02 20:17:59,439 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 661 685) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) .cse0))) [2022-11-02 20:17:59,439 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 661 685) no Hoare annotation was computed. [2022-11-02 20:17:59,439 INFO L895 garLoopResultBuilder]: At program point L675(line 675) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-02 20:17:59,440 INFO L895 garLoopResultBuilder]: At program point L962(lines 957 965) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-02 20:17:59,440 INFO L899 garLoopResultBuilder]: For program point L894-1(lines 890 901) no Hoare annotation was computed. [2022-11-02 20:17:59,440 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 890 901) 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)|))) (.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 (= 0 ~systemActive~0)) (or (<= 1 ~methaneLevelCritical~0) .cse0 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2022-11-02 20:17:59,440 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 890 901) no Hoare annotation was computed. [2022-11-02 20:17:59,441 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 603 626) no Hoare annotation was computed. [2022-11-02 20:17:59,441 INFO L899 garLoopResultBuilder]: For program point L870(lines 870 874) no Hoare annotation was computed. [2022-11-02 20:17:59,441 INFO L899 garLoopResultBuilder]: For program point L614-1(lines 614 620) no Hoare annotation was computed. [2022-11-02 20:17:59,441 INFO L895 garLoopResultBuilder]: At program point L870-2(lines 866 877) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (= 0 ~systemActive~0)))) [2022-11-02 20:17:59,441 INFO L895 garLoopResultBuilder]: At program point L701(line 701) the Hoare annotation is: (let ((.cse1 (not (<= 0 ~methaneLevelCritical~0))) (.cse0 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0))) [2022-11-02 20:17:59,442 INFO L895 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (not (<= 1 ~methaneLevelCritical~0)) .cse1 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1))) [2022-11-02 20:17:59,442 INFO L895 garLoopResultBuilder]: At program point L693(line 693) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (= 0 ~systemActive~0)))) [2022-11-02 20:17:59,442 INFO L899 garLoopResultBuilder]: For program point L693-1(line 693) no Hoare annotation was computed. [2022-11-02 20:17:59,442 INFO L899 garLoopResultBuilder]: For program point L111(lines 111 117) no Hoare annotation was computed. [2022-11-02 20:17:59,443 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 120) no Hoare annotation was computed. [2022-11-02 20:17:59,443 INFO L895 garLoopResultBuilder]: At program point L107-1(lines 99 123) the Hoare annotation is: (let ((.cse8 (= 0 ~systemActive~0))) (let ((.cse3 (not .cse8)) (.cse1 (not (<= ~methaneLevelCritical~0 0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0))) (.cse5 (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 1))) (.cse6 (<= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse7 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6)) (or .cse7 (and .cse4 .cse3) .cse8) (or .cse0 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse6) (and .cse4 .cse5 .cse6 .cse3) .cse1 .cse2 (and .cse5 (<= 2 ~waterLevel~0) .cse6) .cse8) (or .cse0 .cse4 .cse7)))) [2022-11-02 20:17:59,443 INFO L895 garLoopResultBuilder]: At program point L706(line 706) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not .cse1)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2022-11-02 20:17:59,444 INFO L895 garLoopResultBuilder]: At program point L706-1(lines 687 711) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse2 .cse3 (not .cse1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (<= 2 ~waterLevel~0) .cse3 .cse1))) [2022-11-02 20:17:59,444 INFO L899 garLoopResultBuilder]: For program point L607-1(lines 606 625) no Hoare annotation was computed. [2022-11-02 20:17:59,444 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-02 20:17:59,444 INFO L895 garLoopResultBuilder]: At program point L761(lines 756 764) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= ~methaneLevelCritical~0 0))) (.cse6 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (and .cse0 .cse1) .cse2 .cse3) (or .cse4 .cse2 (and .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse5 .cse6 .cse3) (or .cse4 .cse5 .cse6))) [2022-11-02 20:17:59,445 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 703) no Hoare annotation was computed. [2022-11-02 20:17:59,445 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse0 (= 0 ~systemActive~0)))) [2022-11-02 20:17:59,445 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 708) no Hoare annotation was computed. [2022-11-02 20:17:59,445 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 603 626) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1 (= 0 ~systemActive~0)) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1))) [2022-11-02 20:17:59,445 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 603 626) no Hoare annotation was computed. [2022-11-02 20:17:59,446 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse2 .cse0 .cse3 (not .cse1)) (or .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (<= 2 ~waterLevel~0) .cse3 .cse1))) [2022-11-02 20:17:59,446 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-02 20:17:59,446 INFO L899 garLoopResultBuilder]: For program point L105-1(line 105) no Hoare annotation was computed. [2022-11-02 20:17:59,446 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 493 522) no Hoare annotation was computed. [2022-11-02 20:17:59,447 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 493 522) the Hoare annotation is: true [2022-11-02 20:17:59,447 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 511) no Hoare annotation was computed. [2022-11-02 20:17:59,447 INFO L902 garLoopResultBuilder]: At program point L507-1(lines 507 511) the Hoare annotation is: true [2022-11-02 20:17:59,447 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-11-02 20:17:59,447 INFO L902 garLoopResultBuilder]: At program point L503-2(lines 503 517) the Hoare annotation is: true [2022-11-02 20:17:59,448 INFO L902 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: true [2022-11-02 20:17:59,448 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2022-11-02 20:17:59,448 INFO L902 garLoopResultBuilder]: At program point L518(lines 493 522) the Hoare annotation is: true [2022-11-02 20:17:59,448 INFO L899 garLoopResultBuilder]: For program point L514(line 514) no Hoare annotation was computed. [2022-11-02 20:17:59,448 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 902 910) the Hoare annotation is: true [2022-11-02 20:17:59,448 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 902 910) no Hoare annotation was computed. [2022-11-02 20:17:59,449 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 902 910) no Hoare annotation was computed. [2022-11-02 20:17:59,449 INFO L895 garLoopResultBuilder]: At program point L989(line 989) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 0 ~methaneLevelCritical~0))) (or (and .cse0 .cse1 (<= ~methaneLevelCritical~0 0) .cse2 .cse3 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-02 20:17:59,449 INFO L895 garLoopResultBuilder]: At program point L77(lines 73 79) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-02 20:17:59,449 INFO L895 garLoopResultBuilder]: At program point L845(line 845) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~methaneLevelCritical~0) (not (= 0 ~systemActive~0))) [2022-11-02 20:17:59,450 INFO L895 garLoopResultBuilder]: At program point L1027(lines 976 1028) the Hoare annotation is: false [2022-11-02 20:17:59,450 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 20:17:59,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 20:17:59,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 20:17:59,450 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1021) no Hoare annotation was computed. [2022-11-02 20:17:59,450 INFO L895 garLoopResultBuilder]: At program point L1015-2(lines 1007 1022) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 0 ~methaneLevelCritical~0))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-02 20:17:59,451 INFO L902 garLoopResultBuilder]: At program point L565(lines 558 567) the Hoare annotation is: true [2022-11-02 20:17:59,451 INFO L899 garLoopResultBuilder]: For program point L978(lines 977 1026) no Hoare annotation was computed. [2022-11-02 20:17:59,451 INFO L899 garLoopResultBuilder]: For program point L1007(lines 1007 1022) no Hoare annotation was computed. [2022-11-02 20:17:59,451 INFO L895 garLoopResultBuilder]: At program point L999(line 999) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 0 ~methaneLevelCritical~0))) (or (and .cse0 .cse1 (<= ~methaneLevelCritical~0 0) .cse2 .cse3 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-02 20:17:59,451 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 585) no Hoare annotation was computed. [2022-11-02 20:17:59,452 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 20:17:59,452 INFO L895 garLoopResultBuilder]: At program point L1024(lines 977 1026) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 0 ~methaneLevelCritical~0))) (or (and .cse0 .cse1 (<= ~methaneLevelCritical~0 0) .cse2 .cse3 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-02 20:17:59,452 INFO L899 garLoopResultBuilder]: For program point L578-2(lines 578 585) no Hoare annotation was computed. [2022-11-02 20:17:59,452 INFO L899 garLoopResultBuilder]: For program point L987(lines 987 993) no Hoare annotation was computed. [2022-11-02 20:17:59,453 INFO L895 garLoopResultBuilder]: At program point L859(lines 854 861) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~methaneLevelCritical~0) (not (= 0 ~systemActive~0))) [2022-11-02 20:17:59,453 INFO L899 garLoopResultBuilder]: For program point L987-1(lines 987 993) no Hoare annotation was computed. [2022-11-02 20:17:59,453 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 983) no Hoare annotation was computed. [2022-11-02 20:17:59,453 INFO L895 garLoopResultBuilder]: At program point L851(lines 839 853) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~methaneLevelCritical~0) (= 0 ~systemActive~0)) [2022-11-02 20:17:59,453 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 849) no Hoare annotation was computed. [2022-11-02 20:17:59,454 INFO L902 garLoopResultBuilder]: At program point L587(lines 568 590) the Hoare annotation is: true [2022-11-02 20:17:59,454 INFO L895 garLoopResultBuilder]: At program point L554(lines 550 556) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~4#1| 1) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-02 20:17:59,454 INFO L899 garLoopResultBuilder]: For program point L843-1(lines 843 849) no Hoare annotation was computed. [2022-11-02 20:17:59,454 INFO L895 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-02 20:17:59,454 INFO L895 garLoopResultBuilder]: At program point L84(lines 80 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-02 20:17:59,455 INFO L902 garLoopResultBuilder]: At program point L1030(lines 967 1034) the Hoare annotation is: true [2022-11-02 20:17:59,455 INFO L899 garLoopResultBuilder]: For program point L997(lines 997 1003) no Hoare annotation was computed. [2022-11-02 20:17:59,455 INFO L899 garLoopResultBuilder]: For program point L997-1(lines 997 1003) no Hoare annotation was computed. [2022-11-02 20:17:59,455 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 635 659) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) .cse0))) [2022-11-02 20:17:59,456 INFO L895 garLoopResultBuilder]: At program point L952(lines 943 956) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0)) (.cse13 (<= 0 ~methaneLevelCritical~0)) (.cse12 (<= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= ~pumpRunning~0 0)) (.cse11 (<= 2 ~waterLevel~0)) (.cse14 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (let ((.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse14)) (.cse9 (not (<= 1 ~methaneLevelCritical~0))) (.cse10 (and .cse0 .cse1 .cse11 .cse14)) (.cse8 (not .cse11)) (.cse3 (not .cse12)) (.cse4 (not .cse13)) (.cse6 (and .cse0 .cse1 .cse11 .cse12 .cse13 .cse14 (not .cse5)))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse9 .cse5 .cse10) (or .cse7 (and .cse1 .cse2) .cse9 .cse5 .cse10) (or .cse8 .cse3 .cse4 .cse5 .cse6)))) [2022-11-02 20:17:59,456 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 733) no Hoare annotation was computed. [2022-11-02 20:17:59,456 INFO L895 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-02 20:17:59,457 INFO L895 garLoopResultBuilder]: At program point L727-2(lines 720 736) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse1) (or (and (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~8#1|) (= ~pumpRunning~0 0) .cse0) (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-02 20:17:59,457 INFO L899 garLoopResultBuilder]: For program point L725-1(line 725) no Hoare annotation was computed. [2022-11-02 20:17:59,457 INFO L895 garLoopResultBuilder]: At program point L816(lines 801 819) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (not .cse2))) (let ((.cse0 (and .cse3 .cse4 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1| 0)) .cse5)) (.cse1 (and .cse3 .cse4 (<= 2 ~waterLevel~0) .cse5))) (and (or .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))))) [2022-11-02 20:17:59,457 INFO L895 garLoopResultBuilder]: At program point L717(lines 712 719) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (<= 2 ~waterLevel~0) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~methaneLevelCritical~0)) .cse0))) [2022-11-02 20:17:59,458 INFO L899 garLoopResultBuilder]: For program point L810(lines 810 814) no Hoare annotation was computed. [2022-11-02 20:17:59,458 INFO L895 garLoopResultBuilder]: At program point L649(line 649) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0)) (.cse6 (not .cse2))) (let ((.cse0 (and .cse3 .cse4 .cse5 (<= 2 ~waterLevel~0) .cse6)) (.cse1 (and .cse3 .cse4 .cse5 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1| 0)) .cse6))) (and (or .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1 (not (<= 0 ~methaneLevelCritical~0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))))) [2022-11-02 20:17:59,458 INFO L899 garLoopResultBuilder]: For program point L810-2(lines 810 814) no Hoare annotation was computed. [2022-11-02 20:17:59,458 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 651) no Hoare annotation was computed. [2022-11-02 20:17:59,458 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 656) no Hoare annotation was computed. [2022-11-02 20:17:59,459 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 635 659) no Hoare annotation was computed. [2022-11-02 20:17:59,459 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2022-11-02 20:17:59,459 INFO L895 garLoopResultBuilder]: At program point L654(line 654) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-02 20:17:59,459 INFO L899 garLoopResultBuilder]: For program point L654-1(lines 635 659) no Hoare annotation was computed. [2022-11-02 20:17:59,460 INFO L899 garLoopResultBuilder]: For program point L882-1(lines 878 889) no Hoare annotation was computed. [2022-11-02 20:17:59,460 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 878 889) no Hoare annotation was computed. [2022-11-02 20:17:59,460 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 878 889) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or (not (<= ~methaneLevelCritical~0 0)) .cse0 .cse1 (= 0 ~systemActive~0)))) [2022-11-02 20:17:59,460 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 745 755) the Hoare annotation is: true [2022-11-02 20:17:59,460 INFO L902 garLoopResultBuilder]: At program point L750(line 750) the Hoare annotation is: true [2022-11-02 20:17:59,461 INFO L899 garLoopResultBuilder]: For program point L750-1(line 750) no Hoare annotation was computed. [2022-11-02 20:17:59,461 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 745 755) no Hoare annotation was computed. [2022-11-02 20:17:59,461 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 745 755) no Hoare annotation was computed. [2022-11-02 20:17:59,464 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:59,467 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:17:59,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:17:59 BoogieIcfgContainer [2022-11-02 20:17:59,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:17:59,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:17:59,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:17:59,495 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:17:59,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:46" (3/4) ... [2022-11-02 20:17:59,499 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:17:59,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-02 20:17:59,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-02 20:17:59,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-02 20:17:59,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-02 20:17:59,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-02 20:17:59,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-02 20:17:59,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-02 20:17:59,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-02 20:17:59,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-02 20:17:59,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-02 20:17:59,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2022-11-02 20:17:59,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-02 20:17:59,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-02 20:17:59,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-02 20:17:59,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:17:59,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:17:59,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:17:59,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive) [2022-11-02 20:17:59,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive) [2022-11-02 20:17:59,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && tmp == 1) && methaneLevelCritical <= 0) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && !(0 == systemActive)) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 <= methaneLevelCritical) [2022-11-02 20:17:59,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) && ((pumpRunning == \old(pumpRunning) || !(0 <= methaneLevelCritical)) || 0 == systemActive) [2022-11-02 20:17:59,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || 2 <= waterLevel) || !(0 <= methaneLevelCritical)) || 0 == systemActive) [2022-11-02 20:17:59,548 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) || ((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0)) && ((!(1 <= methaneLevelCritical) || (pumpRunning == 0 && !(0 == systemActive))) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((((((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0) || (((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0) && !(0 == systemActive))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || ((0 < tmp + 1 && 2 <= waterLevel) && tmp <= 0)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 <= methaneLevelCritical)) [2022-11-02 20:17:59,548 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == 1 && tmp == 1) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && !(0 == systemActive) [2022-11-02 20:17:59,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && 0 == systemActive [2022-11-02 20:17:59,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((!(methaneLevelCritical <= 0) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2022-11-02 20:17:59,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && (((((methaneLevelCritical <= tmp && pumpRunning == 0) && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) [2022-11-02 20:17:59,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) [2022-11-02 20:17:59,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || 0 == systemActive) [2022-11-02 20:17:59,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(\result == 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && \result == 0) && !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && \result == 0))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) || 0 == systemActive) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && \result == 0))) && ((((!(2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && \result == 0) && !(0 == systemActive))) [2022-11-02 20:17:59,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) && (!(0 <= methaneLevelCritical) || 0 == systemActive) [2022-11-02 20:17:59,551 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || 0 == systemActive) [2022-11-02 20:17:59,551 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) && !(tmp == 0)) && !(0 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) && !(tmp == 0)) && !(0 == systemActive))) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) [2022-11-02 20:17:59,582 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:17:59,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:17:59,583 INFO L158 Benchmark]: Toolchain (without parser) took 14039.77ms. Allocated memory was 90.2MB in the beginning and 205.5MB in the end (delta: 115.3MB). Free memory was 53.9MB in the beginning and 121.1MB in the end (delta: -67.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2022-11-02 20:17:59,584 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:59,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.48ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 57.3MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:17:59,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.53ms. Allocated memory is still 90.2MB. Free memory was 57.3MB in the beginning and 54.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:59,585 INFO L158 Benchmark]: Boogie Preprocessor took 30.54ms. Allocated memory is still 90.2MB. Free memory was 54.6MB in the beginning and 52.8MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:17:59,586 INFO L158 Benchmark]: RCFGBuilder took 683.21ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.8MB in the beginning and 82.0MB in the end (delta: -29.2MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-11-02 20:17:59,586 INFO L158 Benchmark]: TraceAbstraction took 12646.85ms. Allocated memory was 109.1MB in the beginning and 205.5MB in the end (delta: 96.5MB). Free memory was 81.4MB in the beginning and 127.4MB in the end (delta: -46.0MB). Peak memory consumption was 119.2MB. Max. memory is 16.1GB. [2022-11-02 20:17:59,587 INFO L158 Benchmark]: Witness Printer took 87.83ms. Allocated memory is still 205.5MB. Free memory was 127.4MB in the beginning and 121.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:17:59,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 526.48ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 57.3MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.53ms. Allocated memory is still 90.2MB. Free memory was 57.3MB in the beginning and 54.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.54ms. Allocated memory is still 90.2MB. Free memory was 54.6MB in the beginning and 52.8MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 683.21ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.8MB in the beginning and 82.0MB in the end (delta: -29.2MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12646.85ms. Allocated memory was 109.1MB in the beginning and 205.5MB in the end (delta: 96.5MB). Free memory was 81.4MB in the beginning and 127.4MB in the end (delta: -46.0MB). Peak memory consumption was 119.2MB. Max. memory is 16.1GB. * Witness Printer took 87.83ms. Allocated memory is still 205.5MB. Free memory was 127.4MB in the beginning and 121.1MB 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: 54]: 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, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1496 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1446 mSDsluCounter, 5725 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4125 mSDsCounter, 421 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1703 IncrementalHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 421 mSolverCounterUnsat, 1600 mSDtfsCounter, 1703 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 305 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=887occurred in iteration=9, InterpolantAutomatonStates: 87, 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, 136 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 2129 PreInvPairs, 2419 NumberOfFragments, 1559 HoareAnnotationTreeSize, 2129 FomulaSimplifications, 300 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 52 FomulaSimplificationsInter, 14434 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 797 NumberOfCodeBlocks, 797 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 784 ConstructedInterpolants, 0 QuantifiedInterpolants, 1531 SizeOfPredicates, 6 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 114/119 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: 80]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 720]: Loop Invariant Derived loop invariant: (((2 <= waterLevel || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && (((((methaneLevelCritical <= tmp && pumpRunning == 0) && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || 2 <= waterLevel) || !(0 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) || ((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0)) && ((!(1 <= methaneLevelCritical) || (pumpRunning == 0 && !(0 == systemActive))) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((((((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0) || (((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0) && !(0 == systemActive))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || ((0 < tmp + 1 && 2 <= waterLevel) && tmp <= 0)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 943]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(\result == 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && \result == 0) && !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && \result == 0))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) || 0 == systemActive) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && \result == 0))) && ((((!(2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && \result == 0) && !(0 == systemActive))) - InvariantResult [Line: 976]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 957]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) && ((pumpRunning == \old(pumpRunning) || !(0 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 712]: Loop Invariant Derived loop invariant: (((2 <= waterLevel || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && 0 == systemActive - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) && (!(0 <= methaneLevelCritical) || 0 == systemActive) - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 820]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: (((((\result == 1 && tmp == 1) && methaneLevelCritical <= 0) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && !(0 == systemActive)) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 <= methaneLevelCritical) - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: (((\result == 1 && tmp == 1) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && !(0 == systemActive) - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((!(methaneLevelCritical <= 0) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) && !(tmp == 0)) && !(0 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) && !(tmp == 0)) && !(0 == systemActive))) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-11-02 20:17:59,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31539f3-131a-4b4a-85db-96e0ca747a55/bin/uautomizer-Dbtcem3rbc/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