./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:59:33,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:59:33,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:59:33,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:59:33,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:59:33,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:59:33,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:59:33,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:59:33,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:59:33,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:59:33,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:59:33,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:59:33,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:59:33,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:59:33,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:59:33,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:59:33,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:59:33,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:59:33,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:59:33,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:59:33,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:59:33,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:59:33,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:59:33,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:59:33,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:59:33,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:59:33,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:59:33,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:59:33,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:59:33,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:59:33,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:59:33,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:59:33,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:59:33,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:59:33,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:59:33,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:59:33,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:59:33,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:59:33,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:59:33,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:59:33,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:59:33,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:59:33,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:59:33,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:59:33,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:59:33,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:59:33,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:59:33,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:59:33,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:59:33,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:59:33,437 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:59:33,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:59:33,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:59:33,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:59:33,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:59:33,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:59:33,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:59:33,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:59:33,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:59:33,442 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:59:33,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:59:33,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:59:33,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:59:33,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:59:33,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:59:33,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:59:33,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:59:33,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:59:33,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:59:33,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:59:33,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:59:33,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:59:33,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:59:33,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:59:33,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:59:33,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2022-11-18 20:59:33,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:59:33,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:59:33,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:59:33,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:59:33,921 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:59:33,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-11-18 20:59:34,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/data/a61784ad6/7913f1e98411474089890252dd43e49e/FLAG97dcaf813 [2022-11-18 20:59:34,734 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:59:34,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-11-18 20:59:34,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/data/a61784ad6/7913f1e98411474089890252dd43e49e/FLAG97dcaf813 [2022-11-18 20:59:34,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/data/a61784ad6/7913f1e98411474089890252dd43e49e [2022-11-18 20:59:34,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:59:34,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:59:34,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:59:34,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:59:34,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:59:34,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:59:34" (1/1) ... [2022-11-18 20:59:34,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74765a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:34, skipping insertion in model container [2022-11-18 20:59:34,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:59:34" (1/1) ... [2022-11-18 20:59:34,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:59:35,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:59:35,478 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2022-11-18 20:59:35,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:59:35,529 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:59:35,640 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2022-11-18 20:59:35,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:59:35,704 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:59:35,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35 WrapperNode [2022-11-18 20:59:35,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:59:35,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:59:35,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:59:35,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:59:35,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,805 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 220 [2022-11-18 20:59:35,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:59:35,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:59:35,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:59:35,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:59:35,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,846 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:59:35,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:59:35,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:59:35,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:59:35,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (1/1) ... [2022-11-18 20:59:35,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:59:35,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:35,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:59:35,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:59:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:59:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 20:59:35,964 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 20:59:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 20:59:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 20:59:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 20:59:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 20:59:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 20:59:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 20:59:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:59:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:59:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 20:59:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 20:59:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-18 20:59:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-18 20:59:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-18 20:59:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-18 20:59:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-18 20:59:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-18 20:59:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:59:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 20:59:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 20:59:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:59:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:59:36,067 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:59:36,070 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:59:36,553 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:59:36,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:59:36,581 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:59:36,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:36 BoogieIcfgContainer [2022-11-18 20:59:36,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:59:36,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:59:36,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:59:36,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:59:36,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:59:34" (1/3) ... [2022-11-18 20:59:36,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46676315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:59:36, skipping insertion in model container [2022-11-18 20:59:36,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:35" (2/3) ... [2022-11-18 20:59:36,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46676315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:59:36, skipping insertion in model container [2022-11-18 20:59:36,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:36" (3/3) ... [2022-11-18 20:59:36,612 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2022-11-18 20:59:36,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:59:36,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:59:36,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:59:36,732 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;@69a433f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:59:36,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:59:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 80 states have (on average 1.375) internal successors, (110), 90 states have internal predecessors, (110), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-18 20:59:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:59:36,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:36,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:36,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:36,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash 614135748, now seen corresponding path program 1 times [2022-11-18 20:59:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:36,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299674398] [2022-11-18 20:59:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:36,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:59:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:37,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:37,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299674398] [2022-11-18 20:59:37,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299674398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:37,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:37,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:37,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549784759] [2022-11-18 20:59:37,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:37,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:59:37,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:37,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:59:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:59:37,206 INFO L87 Difference]: Start difference. First operand has 110 states, 80 states have (on average 1.375) internal successors, (110), 90 states have internal predecessors, (110), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:37,282 INFO L93 Difference]: Finished difference Result 211 states and 286 transitions. [2022-11-18 20:59:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:59:37,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-18 20:59:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:37,313 INFO L225 Difference]: With dead ends: 211 [2022-11-18 20:59:37,314 INFO L226 Difference]: Without dead ends: 101 [2022-11-18 20:59:37,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:59:37,332 INFO L413 NwaCegarLoop]: 140 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, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:37,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:37,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-18 20:59:37,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-11-18 20:59:37,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 82 states have internal predecessors, (96), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-18 20:59:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 131 transitions. [2022-11-18 20:59:37,390 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 131 transitions. Word has length 25 [2022-11-18 20:59:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:37,391 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 131 transitions. [2022-11-18 20:59:37,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:37,392 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 131 transitions. [2022-11-18 20:59:37,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:59:37,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:37,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:37,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:59:37,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:37,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:37,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1570881816, now seen corresponding path program 1 times [2022-11-18 20:59:37,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:37,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287474184] [2022-11-18 20:59:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:37,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:59:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:37,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:37,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287474184] [2022-11-18 20:59:37,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287474184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:37,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:37,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:59:37,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461333210] [2022-11-18 20:59:37,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:37,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:37,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:37,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:37,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:37,591 INFO L87 Difference]: Start difference. First operand 101 states and 131 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:37,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:37,619 INFO L93 Difference]: Finished difference Result 167 states and 217 transitions. [2022-11-18 20:59:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:37,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-18 20:59:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:37,623 INFO L225 Difference]: With dead ends: 167 [2022-11-18 20:59:37,623 INFO L226 Difference]: Without dead ends: 92 [2022-11-18 20:59:37,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:37,626 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 12 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:37,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-18 20:59:37,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-18 20:59:37,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.328358208955224) internal successors, (89), 76 states have internal predecessors, (89), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:59:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2022-11-18 20:59:37,653 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 26 [2022-11-18 20:59:37,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:37,654 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2022-11-18 20:59:37,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:37,655 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2022-11-18 20:59:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:59:37,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:37,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:37,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:59:37,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2142316214, now seen corresponding path program 1 times [2022-11-18 20:59:37,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:37,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552753487] [2022-11-18 20:59:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:37,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:59:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:37,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:37,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552753487] [2022-11-18 20:59:37,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552753487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:37,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:37,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:59:37,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458970512] [2022-11-18 20:59:37,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:37,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:37,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:37,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:37,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:37,858 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:37,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:37,887 INFO L93 Difference]: Finished difference Result 176 states and 231 transitions. [2022-11-18 20:59:37,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:37,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 30 [2022-11-18 20:59:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:37,890 INFO L225 Difference]: With dead ends: 176 [2022-11-18 20:59:37,891 INFO L226 Difference]: Without dead ends: 92 [2022-11-18 20:59:37,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:37,894 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 100 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:37,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:37,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-18 20:59:37,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-18 20:59:37,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 76 states have internal predecessors, (88), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:59:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2022-11-18 20:59:37,914 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 30 [2022-11-18 20:59:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:37,915 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2022-11-18 20:59:37,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2022-11-18 20:59:37,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 20:59:37,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:37,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:37,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:59:37,919 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:37,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:37,920 INFO L85 PathProgramCache]: Analyzing trace with hash -92443095, now seen corresponding path program 1 times [2022-11-18 20:59:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:37,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548444370] [2022-11-18 20:59:37,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:59:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 20:59:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:38,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:38,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548444370] [2022-11-18 20:59:38,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548444370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:38,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:38,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:38,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584358207] [2022-11-18 20:59:38,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:38,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:38,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:38,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:38,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:59:38,189 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:59:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:38,640 INFO L93 Difference]: Finished difference Result 264 states and 338 transitions. [2022-11-18 20:59:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:59:38,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2022-11-18 20:59:38,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:38,650 INFO L225 Difference]: With dead ends: 264 [2022-11-18 20:59:38,650 INFO L226 Difference]: Without dead ends: 180 [2022-11-18 20:59:38,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:59:38,653 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 226 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:38,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 315 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:59:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-18 20:59:38,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2022-11-18 20:59:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2578125) internal successors, (161), 137 states have internal predecessors, (161), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-18 20:59:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2022-11-18 20:59:38,687 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 45 [2022-11-18 20:59:38,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:38,688 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2022-11-18 20:59:38,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:59:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2022-11-18 20:59:38,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-18 20:59:38,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:38,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:38,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:59:38,699 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:38,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash 440823665, now seen corresponding path program 1 times [2022-11-18 20:59:38,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:38,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964706395] [2022-11-18 20:59:38,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:38,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:59:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:59:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:59:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:38,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:38,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964706395] [2022-11-18 20:59:38,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964706395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:38,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:38,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:59:38,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848829284] [2022-11-18 20:59:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:38,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:38,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:38,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:38,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:38,993 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:59:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:39,393 INFO L93 Difference]: Finished difference Result 352 states and 430 transitions. [2022-11-18 20:59:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:59:39,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2022-11-18 20:59:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:39,401 INFO L225 Difference]: With dead ends: 352 [2022-11-18 20:59:39,401 INFO L226 Difference]: Without dead ends: 186 [2022-11-18 20:59:39,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:59:39,414 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 153 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:39,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 443 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:59:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-18 20:59:39,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 172. [2022-11-18 20:59:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 126 states have (on average 1.2301587301587302) internal successors, (155), 135 states have internal predecessors, (155), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-18 20:59:39,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2022-11-18 20:59:39,478 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 51 [2022-11-18 20:59:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:39,481 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2022-11-18 20:59:39,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:59:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2022-11-18 20:59:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-18 20:59:39,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:39,491 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] [2022-11-18 20:59:39,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:59:39,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash 296938365, now seen corresponding path program 1 times [2022-11-18 20:59:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:39,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15181327] [2022-11-18 20:59:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:39,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:39,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:59:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:59:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:59:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:59:39,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:39,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15181327] [2022-11-18 20:59:39,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15181327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:39,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:39,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:59:39,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797891757] [2022-11-18 20:59:39,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:39,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:39,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:39,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:39,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:39,797 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:59:40,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:40,059 INFO L93 Difference]: Finished difference Result 346 states and 423 transitions. [2022-11-18 20:59:40,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:59:40,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 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 61 [2022-11-18 20:59:40,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:40,064 INFO L225 Difference]: With dead ends: 346 [2022-11-18 20:59:40,065 INFO L226 Difference]: Without dead ends: 182 [2022-11-18 20:59:40,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:40,074 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 77 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:40,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 413 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:59:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-18 20:59:40,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2022-11-18 20:59:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.2248062015503876) internal successors, (158), 138 states have internal predecessors, (158), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-18 20:59:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2022-11-18 20:59:40,121 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 61 [2022-11-18 20:59:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:40,123 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2022-11-18 20:59:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:59:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2022-11-18 20:59:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-18 20:59:40,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:40,135 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] [2022-11-18 20:59:40,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:59:40,135 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:40,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:40,136 INFO L85 PathProgramCache]: Analyzing trace with hash 224551807, now seen corresponding path program 1 times [2022-11-18 20:59:40,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:40,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389424346] [2022-11-18 20:59:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:40,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:59:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:59:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:59:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:59:40,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:40,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389424346] [2022-11-18 20:59:40,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389424346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:40,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:40,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:40,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167683805] [2022-11-18 20:59:40,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:40,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:40,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:40,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:40,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:59:40,349 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:59:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:40,583 INFO L93 Difference]: Finished difference Result 352 states and 429 transitions. [2022-11-18 20:59:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:59:40,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 61 [2022-11-18 20:59:40,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:40,595 INFO L225 Difference]: With dead ends: 352 [2022-11-18 20:59:40,595 INFO L226 Difference]: Without dead ends: 185 [2022-11-18 20:59:40,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:40,598 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 81 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:40,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 321 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:59:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-18 20:59:40,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2022-11-18 20:59:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.2213740458015268) internal successors, (160), 140 states have internal predecessors, (160), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-18 20:59:40,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 211 transitions. [2022-11-18 20:59:40,645 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 211 transitions. Word has length 61 [2022-11-18 20:59:40,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:40,646 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 211 transitions. [2022-11-18 20:59:40,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:59:40,646 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 211 transitions. [2022-11-18 20:59:40,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-18 20:59:40,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:40,647 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] [2022-11-18 20:59:40,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:59:40,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:40,648 INFO L85 PathProgramCache]: Analyzing trace with hash -619453695, now seen corresponding path program 1 times [2022-11-18 20:59:40,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:40,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109973502] [2022-11-18 20:59:40,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:40,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:59:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:59:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:59:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:59:40,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:40,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109973502] [2022-11-18 20:59:40,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109973502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:40,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:40,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:40,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976518393] [2022-11-18 20:59:40,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:40,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:40,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:40,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:40,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:59:40,782 INFO L87 Difference]: Start difference. First operand 177 states and 211 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-18 20:59:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:41,126 INFO L93 Difference]: Finished difference Result 470 states and 590 transitions. [2022-11-18 20:59:41,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:59:41,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 61 [2022-11-18 20:59:41,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:41,131 INFO L225 Difference]: With dead ends: 470 [2022-11-18 20:59:41,131 INFO L226 Difference]: Without dead ends: 301 [2022-11-18 20:59:41,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:41,133 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 224 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:41,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 335 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:59:41,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-18 20:59:41,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2022-11-18 20:59:41,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 221 states have (on average 1.2126696832579185) internal successors, (268), 234 states have internal predecessors, (268), 39 states have call successors, (39), 35 states have call predecessors, (39), 38 states have return successors, (58), 40 states have call predecessors, (58), 39 states have call successors, (58) [2022-11-18 20:59:41,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 365 transitions. [2022-11-18 20:59:41,183 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 365 transitions. Word has length 61 [2022-11-18 20:59:41,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:41,184 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 365 transitions. [2022-11-18 20:59:41,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-18 20:59:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 365 transitions. [2022-11-18 20:59:41,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-18 20:59:41,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:41,185 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] [2022-11-18 20:59:41,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:59:41,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:41,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:41,186 INFO L85 PathProgramCache]: Analyzing trace with hash -96720153, now seen corresponding path program 1 times [2022-11-18 20:59:41,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:41,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752667342] [2022-11-18 20:59:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:41,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:59:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:59:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:59:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:59:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:59:41,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:41,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752667342] [2022-11-18 20:59:41,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752667342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:41,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:41,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:59:41,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990602224] [2022-11-18 20:59:41,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:41,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:59:41,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:41,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:59:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:59:41,526 INFO L87 Difference]: Start difference. First operand 299 states and 365 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:59:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:42,789 INFO L93 Difference]: Finished difference Result 921 states and 1167 transitions. [2022-11-18 20:59:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:59:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2022-11-18 20:59:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:42,795 INFO L225 Difference]: With dead ends: 921 [2022-11-18 20:59:42,795 INFO L226 Difference]: Without dead ends: 630 [2022-11-18 20:59:42,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:59:42,798 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 569 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:42,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 484 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:59:42,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-18 20:59:42,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 605. [2022-11-18 20:59:42,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 440 states have (on average 1.184090909090909) internal successors, (521), 470 states have internal predecessors, (521), 86 states have call successors, (86), 68 states have call predecessors, (86), 78 states have return successors, (135), 86 states have call predecessors, (135), 86 states have call successors, (135) [2022-11-18 20:59:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 742 transitions. [2022-11-18 20:59:42,894 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 742 transitions. Word has length 65 [2022-11-18 20:59:42,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:42,894 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 742 transitions. [2022-11-18 20:59:42,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:59:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 742 transitions. [2022-11-18 20:59:42,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-18 20:59:42,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:42,899 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:42,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:59:42,899 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:59:42,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:42,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1036545062, now seen corresponding path program 1 times [2022-11-18 20:59:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:42,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278498862] [2022-11-18 20:59:42,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:42,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:59:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:59:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:59:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:59:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:59:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:59:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:59:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:59:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:59:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:59:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:59:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,345 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:59:43,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:43,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278498862] [2022-11-18 20:59:43,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278498862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:43,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772965311] [2022-11-18 20:59:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:43,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:43,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:43,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:43,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:59:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:43,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:59:43,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:59:43,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:43,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772965311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:43,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:43,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2022-11-18 20:59:43,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356014828] [2022-11-18 20:59:43,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:43,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:59:43,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:43,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:59:43,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:59:43,727 INFO L87 Difference]: Start difference. First operand 605 states and 742 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) [2022-11-18 20:59:44,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:44,043 INFO L93 Difference]: Finished difference Result 1305 states and 1599 transitions. [2022-11-18 20:59:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:59:44,043 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 [2022-11-18 20:59:44,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:44,045 INFO L225 Difference]: With dead ends: 1305 [2022-11-18 20:59:44,045 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:59:44,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:59:44,050 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 78 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:44,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1108 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:59:44,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:59:44,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:59:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:59:44,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2022-11-18 20:59:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:44,054 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:59:44,054 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) [2022-11-18 20:59:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:59:44,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:59:44,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:59:44,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:44,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:59:44,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:59:48,369 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 919 926) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2022-11-18 20:59:48,369 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 919 926) no Hoare annotation was computed. [2022-11-18 20:59:48,369 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 919 926) no Hoare annotation was computed. [2022-11-18 20:59:48,369 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 809 815) no Hoare annotation was computed. [2022-11-18 20:59:48,369 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 809 815) the Hoare annotation is: true [2022-11-18 20:59:48,370 INFO L895 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-18 20:59:48,370 INFO L895 garLoopResultBuilder]: At program point L853(line 853) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-18 20:59:48,370 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 859) no Hoare annotation was computed. [2022-11-18 20:59:48,370 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 864) no Hoare annotation was computed. [2022-11-18 20:59:48,370 INFO L895 garLoopResultBuilder]: At program point L775(lines 770 778) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-18 20:59:48,371 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse3 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse3 .cse0 .cse2))) [2022-11-18 20:59:48,371 INFO L899 garLoopResultBuilder]: For program point L862-1(lines 843 867) no Hoare annotation was computed. [2022-11-18 20:59:48,371 INFO L895 garLoopResultBuilder]: At program point L1017(lines 1002 1020) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-18 20:59:48,371 INFO L899 garLoopResultBuilder]: For program point L1011(lines 1011 1015) no Hoare annotation was computed. [2022-11-18 20:59:48,371 INFO L899 garLoopResultBuilder]: For program point L1011-2(lines 1011 1015) no Hoare annotation was computed. [2022-11-18 20:59:48,371 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 843 867) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-18 20:59:48,371 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 843 867) no Hoare annotation was computed. [2022-11-18 20:59:48,372 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 703 714) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0) (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2022-11-18 20:59:48,372 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 703 714) no Hoare annotation was computed. [2022-11-18 20:59:48,372 INFO L899 garLoopResultBuilder]: For program point L707-1(lines 703 714) no Hoare annotation was computed. [2022-11-18 20:59:48,372 INFO L895 garLoopResultBuilder]: At program point L568(lines 563 570) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-18 20:59:48,372 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 785 808) no Hoare annotation was computed. [2022-11-18 20:59:48,372 INFO L899 garLoopResultBuilder]: For program point L796-1(lines 796 802) no Hoare annotation was computed. [2022-11-18 20:59:48,372 INFO L895 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-18 20:59:48,373 INFO L895 garLoopResultBuilder]: At program point L879(line 879) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or (and .cse0 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) .cse1 .cse4) (or .cse3 .cse1 .cse2))) [2022-11-18 20:59:48,373 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse3)) (or .cse3 .cse1 .cse2))) [2022-11-18 20:59:48,373 INFO L899 garLoopResultBuilder]: For program point L875-1(line 875) no Hoare annotation was computed. [2022-11-18 20:59:48,381 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2022-11-18 20:59:48,381 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 87) no Hoare annotation was computed. [2022-11-18 20:59:48,382 INFO L895 garLoopResultBuilder]: At program point L70-1(lines 62 90) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse2 (not .cse6)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (let ((.cse0 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) .cse2 (and .cse3 .cse4 .cse0) (and .cse4 .cse5 .cse6 .cse0) (not (= ~methaneLevelCritical~0 0)) (and .cse3 .cse5 .cse6 .cse0 .cse1))) (or .cse2 (not (<= 1 ~methaneLevelCritical~0)) (and .cse4 .cse5 (<= 1 |timeShift_processEnvironment_~tmp~8#1|) .cse6) (and .cse3 .cse5 .cse6 .cse1))))) [2022-11-18 20:59:48,382 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-18 20:59:48,383 INFO L895 garLoopResultBuilder]: At program point L888-1(lines 869 893) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse3 .cse2 .cse4)) (or (and .cse2 .cse4) .cse0 (and .cse3 .cse1) (and .cse1 .cse2) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse4)))) [2022-11-18 20:59:48,383 INFO L899 garLoopResultBuilder]: For program point L789-1(lines 788 807) no Hoare annotation was computed. [2022-11-18 20:59:48,383 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-11-18 20:59:48,384 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-11-18 20:59:48,384 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 785 808) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-18 20:59:48,384 INFO L895 garLoopResultBuilder]: At program point L943(lines 938 946) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_isPumpRunning_#res#1| 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and (not (= |old(~pumpRunning~0)| 0)) .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|) .cse2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-18 20:59:48,385 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 885) no Hoare annotation was computed. [2022-11-18 20:59:48,386 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 687) no Hoare annotation was computed. [2022-11-18 20:59:48,386 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 785 808) no Hoare annotation was computed. [2022-11-18 20:59:48,386 INFO L895 garLoopResultBuilder]: At program point L683-2(lines 679 690) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse3)) (or .cse3 .cse1 .cse2))) [2022-11-18 20:59:48,386 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 890) no Hoare annotation was computed. [2022-11-18 20:59:48,386 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 567) no Hoare annotation was computed. [2022-11-18 20:59:48,387 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse3 .cse2 .cse4)) (or (and .cse2 .cse4) .cse0 (and .cse3 .cse1) (and .cse1 .cse2) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse4)))) [2022-11-18 20:59:48,387 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2022-11-18 20:59:48,387 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 94 123) no Hoare annotation was computed. [2022-11-18 20:59:48,387 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 94 123) the Hoare annotation is: true [2022-11-18 20:59:48,388 INFO L902 garLoopResultBuilder]: At program point L119(lines 94 123) the Hoare annotation is: true [2022-11-18 20:59:48,388 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2022-11-18 20:59:48,388 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 112) no Hoare annotation was computed. [2022-11-18 20:59:48,388 INFO L902 garLoopResultBuilder]: At program point L108-1(lines 108 112) the Hoare annotation is: true [2022-11-18 20:59:48,388 INFO L899 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2022-11-18 20:59:48,388 INFO L902 garLoopResultBuilder]: At program point L104-2(lines 104 118) the Hoare annotation is: true [2022-11-18 20:59:48,389 INFO L902 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: true [2022-11-18 20:59:48,389 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2022-11-18 20:59:48,389 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 715 723) the Hoare annotation is: true [2022-11-18 20:59:48,390 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 715 723) no Hoare annotation was computed. [2022-11-18 20:59:48,390 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 715 723) no Hoare annotation was computed. [2022-11-18 20:59:48,390 INFO L902 garLoopResultBuilder]: At program point L192(lines 173 195) the Hoare annotation is: true [2022-11-18 20:59:48,390 INFO L895 garLoopResultBuilder]: At program point L155(lines 151 157) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:59:48,390 INFO L895 garLoopResultBuilder]: At program point L663(lines 616 664) the Hoare annotation is: false [2022-11-18 20:59:48,391 INFO L899 garLoopResultBuilder]: For program point L618(lines 617 662) no Hoare annotation was computed. [2022-11-18 20:59:48,391 INFO L899 garLoopResultBuilder]: For program point L647(lines 647 658) no Hoare annotation was computed. [2022-11-18 20:59:48,391 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:59:48,391 INFO L895 garLoopResultBuilder]: At program point L639(line 639) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-18 20:59:48,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:59:48,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:59:48,393 INFO L895 garLoopResultBuilder]: At program point L602(lines 597 605) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:59:48,393 INFO L895 garLoopResultBuilder]: At program point L660(lines 617 662) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-18 20:59:48,394 INFO L899 garLoopResultBuilder]: For program point L627(lines 627 633) no Hoare annotation was computed. [2022-11-18 20:59:48,394 INFO L895 garLoopResultBuilder]: At program point L594(lines 590 596) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:59:48,394 INFO L899 garLoopResultBuilder]: For program point L627-1(lines 627 633) no Hoare annotation was computed. [2022-11-18 20:59:48,394 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 623) no Hoare annotation was computed. [2022-11-18 20:59:48,394 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:59:48,395 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 657) no Hoare annotation was computed. [2022-11-18 20:59:48,395 INFO L895 garLoopResultBuilder]: At program point L587(lines 583 589) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:59:48,395 INFO L895 garLoopResultBuilder]: At program point L653-2(lines 647 658) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-18 20:59:48,396 INFO L899 garLoopResultBuilder]: For program point L637(lines 637 643) no Hoare annotation was computed. [2022-11-18 20:59:48,396 INFO L899 garLoopResultBuilder]: For program point L637-1(lines 637 643) no Hoare annotation was computed. [2022-11-18 20:59:48,396 INFO L895 garLoopResultBuilder]: At program point L59(lines 54 61) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:59:48,396 INFO L902 garLoopResultBuilder]: At program point L666(lines 607 670) the Hoare annotation is: true [2022-11-18 20:59:48,396 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 190) no Hoare annotation was computed. [2022-11-18 20:59:48,397 INFO L895 garLoopResultBuilder]: At program point L629(line 629) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-18 20:59:48,397 INFO L899 garLoopResultBuilder]: For program point L183-2(lines 183 190) no Hoare annotation was computed. [2022-11-18 20:59:48,397 INFO L902 garLoopResultBuilder]: At program point L167(lines 159 169) the Hoare annotation is: true [2022-11-18 20:59:48,398 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 817 841) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-18 20:59:48,398 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 766) no Hoare annotation was computed. [2022-11-18 20:59:48,398 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 915) no Hoare annotation was computed. [2022-11-18 20:59:48,398 INFO L895 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2)) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (not (= ~methaneLevelCritical~0 0))))) [2022-11-18 20:59:48,399 INFO L895 garLoopResultBuilder]: At program point L909-2(lines 902 918) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 0) .cse3 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~9#1|))) (or .cse0 .cse3 .cse2))) [2022-11-18 20:59:48,399 INFO L899 garLoopResultBuilder]: For program point L907-1(line 907) no Hoare annotation was computed. [2022-11-18 20:59:48,399 INFO L895 garLoopResultBuilder]: At program point L998(lines 983 1001) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= ~pumpRunning~0 0)) (.cse5 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse5)) (.cse1 (and .cse4 .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) .cse5 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0))) (.cse3 (<= 2 ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse2 .cse3)) (or .cse0 .cse1 (and .cse4 .cse2 .cse3) (not (= ~methaneLevelCritical~0 0)))))) [2022-11-18 20:59:48,399 INFO L895 garLoopResultBuilder]: At program point L899(lines 894 901) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (<= 2 ~waterLevel~0) .cse2))) [2022-11-18 20:59:48,400 INFO L899 garLoopResultBuilder]: For program point L992(lines 992 996) no Hoare annotation was computed. [2022-11-18 20:59:48,400 INFO L895 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse2)) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse2 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1)))) [2022-11-18 20:59:48,400 INFO L899 garLoopResultBuilder]: For program point L992-2(lines 992 996) no Hoare annotation was computed. [2022-11-18 20:59:48,400 INFO L895 garLoopResultBuilder]: At program point L765(lines 756 769) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and .cse5 (<= 2 ~waterLevel~0))) (.cse4 (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse5))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse4)))) [2022-11-18 20:59:48,400 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 817 841) no Hoare annotation was computed. [2022-11-18 20:59:48,401 INFO L899 garLoopResultBuilder]: For program point L825(lines 825 833) no Hoare annotation was computed. [2022-11-18 20:59:48,401 INFO L899 garLoopResultBuilder]: For program point L821(lines 821 838) no Hoare annotation was computed. [2022-11-18 20:59:48,401 INFO L895 garLoopResultBuilder]: At program point L836(line 836) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-18 20:59:48,401 INFO L899 garLoopResultBuilder]: For program point L836-1(lines 817 841) no Hoare annotation was computed. [2022-11-18 20:59:48,401 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 691 702) no Hoare annotation was computed. [2022-11-18 20:59:48,401 INFO L899 garLoopResultBuilder]: For program point L695-1(lines 691 702) no Hoare annotation was computed. [2022-11-18 20:59:48,402 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 691 702) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-18 20:59:48,402 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 927 937) the Hoare annotation is: true [2022-11-18 20:59:48,402 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 927 937) no Hoare annotation was computed. [2022-11-18 20:59:48,402 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 927 937) no Hoare annotation was computed. [2022-11-18 20:59:48,402 INFO L902 garLoopResultBuilder]: At program point L932(line 932) the Hoare annotation is: true [2022-11-18 20:59:48,403 INFO L899 garLoopResultBuilder]: For program point L932-1(line 932) no Hoare annotation was computed. [2022-11-18 20:59:48,406 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:48,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:59:48,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:59:48 BoogieIcfgContainer [2022-11-18 20:59:48,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:59:48,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:59:48,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:59:48,455 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:59:48,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:36" (3/4) ... [2022-11-18 20:59:48,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:59:48,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-18 20:59:48,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-18 20:59:48,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-18 20:59:48,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-18 20:59:48,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-18 20:59:48,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-18 20:59:48,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:59:48,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-18 20:59:48,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-18 20:59:48,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-18 20:59:48,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-18 20:59:48,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 20:59:48,484 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:59:48,484 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:59:48,485 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:59:48,516 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-18 20:59:48,518 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2022-11-18 20:59:48,521 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2 <= waterLevel && tmp == 0) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == 0)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && 1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) [2022-11-18 20:59:48,521 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) [2022-11-18 20:59:48,522 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2022-11-18 20:59:48,522 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2022-11-18 20:59:48,522 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-18 20:59:48,523 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0)) [2022-11-18 20:59:48,524 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-18 20:59:48,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) && (((!(1 == systemActive) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) [2022-11-18 20:59:48,590 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:59:48,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:59:48,592 INFO L158 Benchmark]: Toolchain (without parser) took 13627.11ms. Allocated memory was 121.6MB in the beginning and 192.9MB in the end (delta: 71.3MB). Free memory was 80.0MB in the beginning and 70.9MB in the end (delta: 9.1MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2022-11-18 20:59:48,593 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:59:48,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.61ms. Allocated memory is still 121.6MB. Free memory was 79.9MB in the beginning and 86.4MB in the end (delta: -6.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:59:48,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.52ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:59:48,594 INFO L158 Benchmark]: Boogie Preprocessor took 45.27ms. Allocated memory is still 121.6MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:59:48,595 INFO L158 Benchmark]: RCFGBuilder took 731.92ms. Allocated memory is still 121.6MB. Free memory was 82.7MB in the beginning and 65.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:59:48,596 INFO L158 Benchmark]: TraceAbstraction took 11851.63ms. Allocated memory was 121.6MB in the beginning and 192.9MB in the end (delta: 71.3MB). Free memory was 64.5MB in the beginning and 77.2MB in the end (delta: -12.7MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2022-11-18 20:59:48,596 INFO L158 Benchmark]: Witness Printer took 136.44ms. Allocated memory is still 192.9MB. Free memory was 77.2MB in the beginning and 70.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:59:48,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 736.61ms. Allocated memory is still 121.6MB. Free memory was 79.9MB in the beginning and 86.4MB in the end (delta: -6.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.52ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.27ms. Allocated memory is still 121.6MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 731.92ms. Allocated memory is still 121.6MB. Free memory was 82.7MB in the beginning and 65.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11851.63ms. Allocated memory was 121.6MB in the beginning and 192.9MB in the end (delta: 71.3MB). Free memory was 64.5MB in the beginning and 77.2MB in the end (delta: -12.7MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * Witness Printer took 136.44ms. Allocated memory is still 192.9MB. Free memory was 77.2MB in the beginning and 70.9MB 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: 567]: 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, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1562 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1520 mSDsluCounter, 3896 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2671 mSDsCounter, 483 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1856 IncrementalHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 483 mSolverCounterUnsat, 1225 mSDtfsCounter, 1856 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 323 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=605occurred in iteration=9, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 62 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 50 LocationsWithAnnotation, 1318 PreInvPairs, 1590 NumberOfFragments, 1414 HoareAnnotationTreeSize, 1318 FomulaSimplifications, 2515 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 50 FomulaSimplificationsInter, 9726 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 671 NumberOfCodeBlocks, 671 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 1100 SizeOfPredicates, 3 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 96/108 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: 1002]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 983]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) && (((!(1 == systemActive) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && 1 == systemActive) && \result == 0)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 159]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 938]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((((((2 <= waterLevel && tmp == 0) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == 0)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && 1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 902]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:59:48,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c4ad78-7a0f-4449-8f26-759e764aae1c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE