./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS --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 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d --- 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-4e7fbc6 [2022-11-23 03:41:20,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:41:20,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:41:20,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:41:20,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:41:20,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:41:20,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:41:20,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:41:20,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:41:20,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:41:20,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:41:20,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:41:20,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:41:20,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:41:20,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:41:20,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:41:20,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:41:20,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:41:20,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:41:20,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:41:20,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:41:20,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:41:20,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:41:20,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:41:20,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:41:20,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:41:20,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:41:20,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:41:20,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:41:20,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:41:20,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:41:20,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:41:20,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:41:20,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:41:20,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:41:20,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:41:20,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:41:20,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:41:20,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:41:20,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:41:20,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:41:20,169 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:41:20,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:41:20,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:41:20,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:41:20,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:41:20,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:41:20,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:41:20,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:41:20,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:41:20,225 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:41:20,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:41:20,226 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:41:20,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:41:20,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:41:20,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:41:20,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:41:20,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:41:20,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:41:20,227 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:41:20,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:41:20,227 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:41:20,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:41:20,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:41:20,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:41:20,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:41:20,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:41:20,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:41:20,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:41:20,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:41:20,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:41:20,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:41:20,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:41:20,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:41:20,230 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:41:20,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:41:20,231 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2022-11-23 03:41:20,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:41:20,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:41:20,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:41:20,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:41:20,536 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:41:20,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2022-11-23 03:41:23,644 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:41:23,895 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:41:23,896 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2022-11-23 03:41:23,911 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/data/56c937bf1/bf71656fa5134f3e901b9b54e3245944/FLAGa288f8961 [2022-11-23 03:41:23,931 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/data/56c937bf1/bf71656fa5134f3e901b9b54e3245944 [2022-11-23 03:41:23,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:41:23,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:41:23,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:41:23,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:41:23,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:41:23,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:23" (1/1) ... [2022-11-23 03:41:23,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778f9489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:23, skipping insertion in model container [2022-11-23 03:41:23,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:23" (1/1) ... [2022-11-23 03:41:23,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:41:24,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:41:24,342 WARN L237 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_5b201003-52bc-49e5-a811-15ffd108fa22/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2022-11-23 03:41:24,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:41:24,378 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:41:24,487 WARN L237 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_5b201003-52bc-49e5-a811-15ffd108fa22/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2022-11-23 03:41:24,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:41:24,525 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:41:24,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24 WrapperNode [2022-11-23 03:41:24,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:41:24,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:41:24,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:41:24,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:41:24,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,576 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 203 [2022-11-23 03:41:24,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:41:24,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:41:24,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:41:24,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:41:24,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:41:24,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:41:24,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:41:24,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:41:24,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (1/1) ... [2022-11-23 03:41:24,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:41:24,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:41:24,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:41:24,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:41:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:41:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 03:41:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 03:41:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 03:41:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 03:41:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 03:41:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 03:41:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 03:41:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 03:41:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 03:41:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 03:41:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 03:41:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 03:41:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:41:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 03:41:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 03:41:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:41:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:41:24,795 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:41:24,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:41:25,168 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:41:25,176 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:41:25,176 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:41:25,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:25 BoogieIcfgContainer [2022-11-23 03:41:25,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:41:25,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:41:25,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:41:25,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:41:25,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:41:23" (1/3) ... [2022-11-23 03:41:25,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aad73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:25, skipping insertion in model container [2022-11-23 03:41:25,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:24" (2/3) ... [2022-11-23 03:41:25,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aad73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:25, skipping insertion in model container [2022-11-23 03:41:25,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:25" (3/3) ... [2022-11-23 03:41:25,200 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2022-11-23 03:41:25,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:41:25,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:41:25,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:41:25,286 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;@3feb1668, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:41:25,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 03:41:25,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 03:41:25,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 03:41:25,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:25,310 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] [2022-11-23 03:41:25,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:25,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:25,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1277571174, now seen corresponding path program 1 times [2022-11-23 03:41:25,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:25,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704078440] [2022-11-23 03:41:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-23 03:41:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:25,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:25,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704078440] [2022-11-23 03:41:25,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704078440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:25,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:25,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:41:25,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146461323] [2022-11-23 03:41:25,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:25,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:41:25,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:41:25,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:41:25,701 INFO L87 Difference]: Start difference. First operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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) [2022-11-23 03:41:25,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:25,745 INFO L93 Difference]: Finished difference Result 167 states and 228 transitions. [2022-11-23 03:41:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:41:25,748 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 [2022-11-23 03:41:25,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:25,758 INFO L225 Difference]: With dead ends: 167 [2022-11-23 03:41:25,758 INFO L226 Difference]: Without dead ends: 79 [2022-11-23 03:41:25,762 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 [2022-11-23 03:41:25,766 INFO L413 NwaCegarLoop]: 111 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, 111 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 [2022-11-23 03:41:25,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:41:25,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-23 03:41:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-23 03:41:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-23 03:41:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2022-11-23 03:41:25,812 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 25 [2022-11-23 03:41:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:25,813 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2022-11-23 03:41:25,813 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) [2022-11-23 03:41:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2022-11-23 03:41:25,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 03:41:25,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:25,816 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] [2022-11-23 03:41:25,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:41:25,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:25,818 INFO L85 PathProgramCache]: Analyzing trace with hash -941221246, now seen corresponding path program 1 times [2022-11-23 03:41:25,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:25,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105837504] [2022-11-23 03:41:25,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:25,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 03:41:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:25,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:25,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105837504] [2022-11-23 03:41:25,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105837504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:25,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:25,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:41:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164655218] [2022-11-23 03:41:25,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:25,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:41:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:25,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:41:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:41:25,944 INFO L87 Difference]: Start difference. First operand 79 states and 102 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) [2022-11-23 03:41:25,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:25,965 INFO L93 Difference]: Finished difference Result 123 states and 159 transitions. [2022-11-23 03:41:25,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:41:25,966 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 [2022-11-23 03:41:25,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:25,967 INFO L225 Difference]: With dead ends: 123 [2022-11-23 03:41:25,967 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 03:41:25,968 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 [2022-11-23 03:41:25,970 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 12 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 162 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 [2022-11-23 03:41:25,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:41:25,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 03:41:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-23 03:41:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 03:41:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-23 03:41:25,993 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 26 [2022-11-23 03:41:25,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:25,994 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-23 03:41:25,994 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) [2022-11-23 03:41:25,995 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-23 03:41:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 03:41:25,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:25,998 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] [2022-11-23 03:41:25,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:41:25,999 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:26,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:26,000 INFO L85 PathProgramCache]: Analyzing trace with hash -913943674, now seen corresponding path program 1 times [2022-11-23 03:41:26,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:26,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654381113] [2022-11-23 03:41:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:26,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:26,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654381113] [2022-11-23 03:41:26,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654381113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:26,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:26,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:41:26,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201416819] [2022-11-23 03:41:26,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:26,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:41:26,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:26,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:41:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:41:26,229 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-23 03:41:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:26,376 INFO L93 Difference]: Finished difference Result 132 states and 173 transitions. [2022-11-23 03:41:26,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:41:26,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2022-11-23 03:41:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:26,384 INFO L225 Difference]: With dead ends: 132 [2022-11-23 03:41:26,384 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 03:41:26,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:41:26,386 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 176 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:26,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 189 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:41:26,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 03:41:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-23 03:41:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 03:41:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-11-23 03:41:26,413 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 30 [2022-11-23 03:41:26,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:26,413 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-11-23 03:41:26,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-23 03:41:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-11-23 03:41:26,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 03:41:26,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:26,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:26,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:41:26,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:26,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1798308510, now seen corresponding path program 1 times [2022-11-23 03:41:26,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:26,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575885416] [2022-11-23 03:41:26,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:26,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:41:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:26,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-23 03:41:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:26,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:26,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575885416] [2022-11-23 03:41:26,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575885416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:26,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:26,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:41:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506120576] [2022-11-23 03:41:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:26,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:41:26,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:26,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:41:26,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:41:26,666 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:41:26,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:26,941 INFO L93 Difference]: Finished difference Result 206 states and 264 transitions. [2022-11-23 03:41:26,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:41:26,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2022-11-23 03:41:26,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:26,943 INFO L225 Difference]: With dead ends: 206 [2022-11-23 03:41:26,944 INFO L226 Difference]: Without dead ends: 144 [2022-11-23 03:41:26,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:41:26,946 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 167 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:26,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 286 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:41:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-23 03:41:26,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2022-11-23 03:41:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 114 states have internal predecessors, (138), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2022-11-23 03:41:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2022-11-23 03:41:26,990 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 40 [2022-11-23 03:41:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:26,992 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2022-11-23 03:41:26,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:41:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2022-11-23 03:41:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 03:41:27,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:27,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:27,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:41:27,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:27,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:27,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1579167755, now seen corresponding path program 1 times [2022-11-23 03:41:27,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:27,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159719857] [2022-11-23 03:41:27,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:27,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:41:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:27,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:27,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159719857] [2022-11-23 03:41:27,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159719857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:27,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:27,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:41:27,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822273086] [2022-11-23 03:41:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:27,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:41:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:41:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:41:27,200 INFO L87 Difference]: Start difference. First operand 138 states and 171 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:41:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:27,396 INFO L93 Difference]: Finished difference Result 276 states and 346 transitions. [2022-11-23 03:41:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:41:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-23 03:41:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:27,401 INFO L225 Difference]: With dead ends: 276 [2022-11-23 03:41:27,401 INFO L226 Difference]: Without dead ends: 146 [2022-11-23 03:41:27,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:41:27,403 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 63 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:27,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 358 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:41:27,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-23 03:41:27,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2022-11-23 03:41:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 117 states have internal predecessors, (141), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2022-11-23 03:41:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 174 transitions. [2022-11-23 03:41:27,441 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 174 transitions. Word has length 44 [2022-11-23 03:41:27,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:27,442 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 174 transitions. [2022-11-23 03:41:27,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:41:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 174 transitions. [2022-11-23 03:41:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 03:41:27,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:27,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:27,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:41:27,448 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash -109775987, now seen corresponding path program 1 times [2022-11-23 03:41:27,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:27,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776376490] [2022-11-23 03:41:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:27,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:41:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:27,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:27,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776376490] [2022-11-23 03:41:27,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776376490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:27,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:27,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:41:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772085226] [2022-11-23 03:41:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:27,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:41:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:41:27,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:41:27,574 INFO L87 Difference]: Start difference. First operand 141 states and 174 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:41:27,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:27,711 INFO L93 Difference]: Finished difference Result 284 states and 357 transitions. [2022-11-23 03:41:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:41:27,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-23 03:41:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:27,719 INFO L225 Difference]: With dead ends: 284 [2022-11-23 03:41:27,720 INFO L226 Difference]: Without dead ends: 151 [2022-11-23 03:41:27,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:27,730 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 65 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:27,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 280 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:41:27,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-23 03:41:27,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2022-11-23 03:41:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 119 states have internal predecessors, (143), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2022-11-23 03:41:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2022-11-23 03:41:27,765 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 44 [2022-11-23 03:41:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:27,766 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2022-11-23 03:41:27,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:41:27,767 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2022-11-23 03:41:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 03:41:27,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:27,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:27,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:41:27,769 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:27,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash 312925839, now seen corresponding path program 1 times [2022-11-23 03:41:27,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:27,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367494752] [2022-11-23 03:41:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:27,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:41:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:27,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:27,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367494752] [2022-11-23 03:41:27,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367494752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:27,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:27,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:41:27,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079714669] [2022-11-23 03:41:27,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:27,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:41:27,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:27,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:41:27,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:41:27,892 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:41:28,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:28,150 INFO L93 Difference]: Finished difference Result 400 states and 514 transitions. [2022-11-23 03:41:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:41:28,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-23 03:41:28,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:28,152 INFO L225 Difference]: With dead ends: 400 [2022-11-23 03:41:28,153 INFO L226 Difference]: Without dead ends: 265 [2022-11-23 03:41:28,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:28,154 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 200 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:28,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 295 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:41:28,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-23 03:41:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 257. [2022-11-23 03:41:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 209 states have internal predecessors, (251), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2022-11-23 03:41:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2022-11-23 03:41:28,186 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 44 [2022-11-23 03:41:28,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:28,187 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2022-11-23 03:41:28,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:41:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2022-11-23 03:41:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 03:41:28,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:28,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:28,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:41:28,189 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:28,189 INFO L85 PathProgramCache]: Analyzing trace with hash 299238822, now seen corresponding path program 1 times [2022-11-23 03:41:28,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:28,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070283770] [2022-11-23 03:41:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:28,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:41:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-23 03:41:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:28,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:28,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070283770] [2022-11-23 03:41:28,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070283770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:28,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:28,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:41:28,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852867314] [2022-11-23 03:41:28,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:28,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:41:28,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:41:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:41:28,298 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:41:28,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:28,551 INFO L93 Difference]: Finished difference Result 522 states and 669 transitions. [2022-11-23 03:41:28,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:41:28,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-11-23 03:41:28,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:28,556 INFO L225 Difference]: With dead ends: 522 [2022-11-23 03:41:28,556 INFO L226 Difference]: Without dead ends: 273 [2022-11-23 03:41:28,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:41:28,559 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 116 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:28,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 334 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:41:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-11-23 03:41:28,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 253. [2022-11-23 03:41:28,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 194 states have (on average 1.231958762886598) internal successors, (239), 205 states have internal predecessors, (239), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2022-11-23 03:41:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 312 transitions. [2022-11-23 03:41:28,613 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 312 transitions. Word has length 46 [2022-11-23 03:41:28,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:28,613 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 312 transitions. [2022-11-23 03:41:28,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:41:28,614 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 312 transitions. [2022-11-23 03:41:28,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 03:41:28,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:28,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:28,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:41:28,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:28,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:28,615 INFO L85 PathProgramCache]: Analyzing trace with hash 657916201, now seen corresponding path program 1 times [2022-11-23 03:41:28,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:28,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989939836] [2022-11-23 03:41:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:28,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-23 03:41:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:41:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:28,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:28,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989939836] [2022-11-23 03:41:28,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989939836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:28,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:28,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:41:28,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893469913] [2022-11-23 03:41:28,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:28,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:41:28,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:28,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:41:28,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:41:28,717 INFO L87 Difference]: Start difference. First operand 253 states and 312 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:41:29,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:29,013 INFO L93 Difference]: Finished difference Result 470 states and 595 transitions. [2022-11-23 03:41:29,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:29,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-11-23 03:41:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:29,017 INFO L225 Difference]: With dead ends: 470 [2022-11-23 03:41:29,017 INFO L226 Difference]: Without dead ends: 468 [2022-11-23 03:41:29,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:41:29,019 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 279 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:29,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 234 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:41:29,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-11-23 03:41:29,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 428. [2022-11-23 03:41:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 331 states have (on average 1.2356495468277946) internal successors, (409), 352 states have internal predecessors, (409), 48 states have call successors, (48), 42 states have call predecessors, (48), 48 states have return successors, (90), 47 states have call predecessors, (90), 48 states have call successors, (90) [2022-11-23 03:41:29,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 547 transitions. [2022-11-23 03:41:29,069 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 547 transitions. Word has length 48 [2022-11-23 03:41:29,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:29,070 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 547 transitions. [2022-11-23 03:41:29,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:41:29,070 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 547 transitions. [2022-11-23 03:41:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 03:41:29,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:29,072 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:29,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:41:29,073 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:29,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1908194548, now seen corresponding path program 1 times [2022-11-23 03:41:29,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:29,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895621198] [2022-11-23 03:41:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:29,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-23 03:41:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:41:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-23 03:41:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:41:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 03:41:29,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:29,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895621198] [2022-11-23 03:41:29,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895621198] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:41:29,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105014805] [2022-11-23 03:41:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:29,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:29,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:41:29,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:41:29,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:41:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:41:29,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:41:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:29,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:41:29,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105014805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:29,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:41:29,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2022-11-23 03:41:29,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218786245] [2022-11-23 03:41:29,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:29,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:41:29,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:41:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:41:29,503 INFO L87 Difference]: Start difference. First operand 428 states and 547 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 03:41:29,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:29,568 INFO L93 Difference]: Finished difference Result 751 states and 975 transitions. [2022-11-23 03:41:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:41:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2022-11-23 03:41:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:29,573 INFO L225 Difference]: With dead ends: 751 [2022-11-23 03:41:29,573 INFO L226 Difference]: Without dead ends: 379 [2022-11-23 03:41:29,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:41:29,576 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 38 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:29,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 191 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:41:29,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-23 03:41:29,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-11-23 03:41:29,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 293 states have (on average 1.2320819112627985) internal successors, (361), 312 states have internal predecessors, (361), 43 states have call successors, (43), 37 states have call predecessors, (43), 42 states have return successors, (68), 43 states have call predecessors, (68), 43 states have call successors, (68) [2022-11-23 03:41:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 472 transitions. [2022-11-23 03:41:29,635 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 472 transitions. Word has length 86 [2022-11-23 03:41:29,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:29,636 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 472 transitions. [2022-11-23 03:41:29,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 03:41:29,636 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 472 transitions. [2022-11-23 03:41:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 03:41:29,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:29,638 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 03:41:29,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:41:29,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:29,844 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:29,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:29,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1350194604, now seen corresponding path program 1 times [2022-11-23 03:41:29,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:29,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895847303] [2022-11-23 03:41:29,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:29,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-23 03:41:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:41:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-23 03:41:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:41:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:41:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:41:30,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:30,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895847303] [2022-11-23 03:41:30,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895847303] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:41:30,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651759508] [2022-11-23 03:41:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:30,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:30,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:41:30,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:41:30,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:41:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:30,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 03:41:30,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:41:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:30,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:41:30,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651759508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:30,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:41:30,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-23 03:41:30,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020897305] [2022-11-23 03:41:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:30,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:41:30,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:41:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:41:30,422 INFO L87 Difference]: Start difference. First operand 379 states and 472 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-23 03:41:30,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:30,598 INFO L93 Difference]: Finished difference Result 988 states and 1300 transitions. [2022-11-23 03:41:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:41:30,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 89 [2022-11-23 03:41:30,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:30,602 INFO L225 Difference]: With dead ends: 988 [2022-11-23 03:41:30,603 INFO L226 Difference]: Without dead ends: 665 [2022-11-23 03:41:30,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:41:30,605 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 169 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:30,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 646 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:41:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-11-23 03:41:30,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 538. [2022-11-23 03:41:30,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 414 states have (on average 1.2318840579710144) internal successors, (510), 440 states have internal predecessors, (510), 62 states have call successors, (62), 55 states have call predecessors, (62), 61 states have return successors, (99), 59 states have call predecessors, (99), 62 states have call successors, (99) [2022-11-23 03:41:30,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 671 transitions. [2022-11-23 03:41:30,682 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 671 transitions. Word has length 89 [2022-11-23 03:41:30,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:30,683 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 671 transitions. [2022-11-23 03:41:30,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-23 03:41:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 671 transitions. [2022-11-23 03:41:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 03:41:30,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:30,692 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 03:41:30,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:41:30,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:30,902 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:30,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:30,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1484208110, now seen corresponding path program 1 times [2022-11-23 03:41:30,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:30,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674704900] [2022-11-23 03:41:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:41:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-23 03:41:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:41:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-23 03:41:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:41:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:41:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:41:31,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:31,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674704900] [2022-11-23 03:41:31,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674704900] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:41:31,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415375241] [2022-11-23 03:41:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:31,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:31,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:41:31,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:41:31,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:41:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:41:31,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:41:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 03:41:31,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:41:31,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415375241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:31,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:41:31,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-23 03:41:31,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915998184] [2022-11-23 03:41:31,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:31,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:41:31,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:31,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:41:31,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:41:31,227 INFO L87 Difference]: Start difference. First operand 538 states and 671 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:41:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:31,296 INFO L93 Difference]: Finished difference Result 724 states and 900 transitions. [2022-11-23 03:41:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:41:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2022-11-23 03:41:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:31,297 INFO L225 Difference]: With dead ends: 724 [2022-11-23 03:41:31,297 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 03:41:31,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:31,299 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 36 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:31,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 315 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:41:31,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 03:41:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 03:41:31,300 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) [2022-11-23 03:41:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 03:41:31,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2022-11-23 03:41:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:31,301 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:41:31,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:41:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:41:31,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 03:41:31,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 03:41:31,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:41:31,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 03:41:31,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 03:41:34,359 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 400 406) no Hoare annotation was computed. [2022-11-23 03:41:34,360 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 400 406) the Hoare annotation is: true [2022-11-23 03:41:34,360 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 188 199) no Hoare annotation was computed. [2022-11-23 03:41:34,360 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 188 199) the Hoare annotation is: true [2022-11-23 03:41:34,360 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 188 199) no Hoare annotation was computed. [2022-11-23 03:41:34,360 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 200 208) the Hoare annotation is: true [2022-11-23 03:41:34,360 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 200 208) no Hoare annotation was computed. [2022-11-23 03:41:34,360 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 200 208) no Hoare annotation was computed. [2022-11-23 03:41:34,361 INFO L895 garLoopResultBuilder]: At program point L448(line 448) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,361 INFO L899 garLoopResultBuilder]: For program point L940(line 940) no Hoare annotation was computed. [2022-11-23 03:41:34,361 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2022-11-23 03:41:34,361 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 376 399) no Hoare annotation was computed. [2022-11-23 03:41:34,361 INFO L895 garLoopResultBuilder]: At program point L168-2(lines 164 175) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,362 INFO L895 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,362 INFO L895 garLoopResultBuilder]: At program point L453-1(lines 434 458) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 .cse3 (and .cse1 .cse5) .cse0 (and (<= 1 ~pumpRunning~0) .cse4 (<= 2 ~waterLevel~0) .cse5) (not (<= 1 |old(~waterLevel~0)|)))))) [2022-11-23 03:41:34,362 INFO L899 garLoopResultBuilder]: For program point L387-1(lines 387 393) no Hoare annotation was computed. [2022-11-23 03:41:34,362 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 298) no Hoare annotation was computed. [2022-11-23 03:41:34,362 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 301) no Hoare annotation was computed. [2022-11-23 03:41:34,362 INFO L895 garLoopResultBuilder]: At program point L284-1(lines 276 304) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and .cse1 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse3))) (or (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,363 INFO L895 garLoopResultBuilder]: At program point L565(lines 550 568) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,363 INFO L895 garLoopResultBuilder]: At program point L941(lines 936 943) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,363 INFO L895 garLoopResultBuilder]: At program point L491(lines 486 494) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse3 .cse4 .cse0 (and (<= 1 ~pumpRunning~0) .cse5 (<= 2 ~waterLevel~0) .cse6) (not (<= 1 |old(~waterLevel~0)|)) (and .cse1 .cse2 .cse6))) (or .cse3 .cse4 .cse5 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-11-23 03:41:34,363 INFO L895 garLoopResultBuilder]: At program point L260(lines 255 263) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,364 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2022-11-23 03:41:34,364 INFO L899 garLoopResultBuilder]: For program point L380-1(lines 379 398) no Hoare annotation was computed. [2022-11-23 03:41:34,364 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 450) no Hoare annotation was computed. [2022-11-23 03:41:34,364 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 455) no Hoare annotation was computed. [2022-11-23 03:41:34,364 INFO L895 garLoopResultBuilder]: At program point L282(line 282) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 .cse3 (and .cse1 .cse5) .cse0 (and (<= 1 ~pumpRunning~0) .cse4 (<= 2 ~waterLevel~0) .cse5) (not (<= 1 |old(~waterLevel~0)|)))))) [2022-11-23 03:41:34,364 INFO L899 garLoopResultBuilder]: For program point L282-1(line 282) no Hoare annotation was computed. [2022-11-23 03:41:34,364 INFO L895 garLoopResultBuilder]: At program point L472(lines 467 474) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,365 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 376 399) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse2 .cse1 .cse4 (< |old(~waterLevel~0)| 2)) (or .cse1 .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 03:41:34,365 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2022-11-23 03:41:34,365 INFO L899 garLoopResultBuilder]: For program point L559-2(lines 559 563) no Hoare annotation was computed. [2022-11-23 03:41:34,365 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 376 399) no Hoare annotation was computed. [2022-11-23 03:41:34,365 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 940) no Hoare annotation was computed. [2022-11-23 03:41:34,365 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-23 03:41:34,373 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-23 03:41:34,374 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-11-23 03:41:34,374 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-23 03:41:34,374 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-23 03:41:34,374 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-23 03:41:34,374 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-23 03:41:34,374 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-23 03:41:34,375 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-23 03:41:34,375 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-23 03:41:34,375 INFO L895 garLoopResultBuilder]: At program point L960(lines 956 962) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 03:41:34,375 INFO L902 garLoopResultBuilder]: At program point L126(lines 118 128) the Hoare annotation is: true [2022-11-23 03:41:34,376 INFO L902 garLoopResultBuilder]: At program point L151(lines 132 154) the Hoare annotation is: true [2022-11-23 03:41:34,376 INFO L895 garLoopResultBuilder]: At program point L362(lines 315 363) the Hoare annotation is: false [2022-11-23 03:41:34,376 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 03:41:34,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 03:41:34,376 INFO L899 garLoopResultBuilder]: For program point L317(lines 316 361) no Hoare annotation was computed. [2022-11-23 03:41:34,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 03:41:34,377 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 357) no Hoare annotation was computed. [2022-11-23 03:41:34,377 INFO L895 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-23 03:41:34,377 INFO L895 garLoopResultBuilder]: At program point L359(lines 316 361) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-23 03:41:34,377 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2022-11-23 03:41:34,377 INFO L899 garLoopResultBuilder]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2022-11-23 03:41:34,378 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 03:41:34,378 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2022-11-23 03:41:34,378 INFO L895 garLoopResultBuilder]: At program point L273(lines 268 275) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 03:41:34,378 INFO L895 garLoopResultBuilder]: At program point L975(lines 970 978) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 03:41:34,378 INFO L895 garLoopResultBuilder]: At program point L967(lines 963 969) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 03:41:34,378 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 356) no Hoare annotation was computed. [2022-11-23 03:41:34,379 INFO L895 garLoopResultBuilder]: At program point L352-2(lines 346 357) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-23 03:41:34,379 INFO L895 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 03:41:34,379 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2022-11-23 03:41:34,379 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 336 342) no Hoare annotation was computed. [2022-11-23 03:41:34,379 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2022-11-23 03:41:34,380 INFO L902 garLoopResultBuilder]: At program point L365(lines 306 369) the Hoare annotation is: true [2022-11-23 03:41:34,380 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 142 149) no Hoare annotation was computed. [2022-11-23 03:41:34,380 INFO L895 garLoopResultBuilder]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-11-23 03:41:34,380 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 408 432) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2) .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 03:41:34,381 INFO L895 garLoopResultBuilder]: At program point L250(lines 241 254) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 .cse1 .cse2) (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (<= 1 ~waterLevel~0)) .cse2))) [2022-11-23 03:41:34,381 INFO L895 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-23 03:41:34,381 INFO L895 garLoopResultBuilder]: At program point L546(lines 531 549) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0)) (and .cse0 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (not (= ~methAndRunningLastTime~0 0)))) [2022-11-23 03:41:34,381 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 424) no Hoare annotation was computed. [2022-11-23 03:41:34,383 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 429) no Hoare annotation was computed. [2022-11-23 03:41:34,383 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2022-11-23 03:41:34,384 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 408 432) no Hoare annotation was computed. [2022-11-23 03:41:34,384 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 540 544) no Hoare annotation was computed. [2022-11-23 03:41:34,384 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 251) no Hoare annotation was computed. [2022-11-23 03:41:34,384 INFO L895 garLoopResultBuilder]: At program point L464(lines 459 466) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-23 03:41:34,384 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-23 03:41:34,384 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 408 432) no Hoare annotation was computed. [2022-11-23 03:41:34,385 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 176 187) no Hoare annotation was computed. [2022-11-23 03:41:34,385 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 176 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (<= 1 ~pumpRunning~0)) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse1 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-23 03:41:34,386 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 176 187) no Hoare annotation was computed. [2022-11-23 03:41:34,389 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:34,393 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:41:34,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:41:34 BoogieIcfgContainer [2022-11-23 03:41:34,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:41:34,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:41:34,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:41:34,439 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:41:34,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:25" (3/4) ... [2022-11-23 03:41:34,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:41:34,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 03:41:34,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 03:41:34,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 03:41:34,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 03:41:34,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 03:41:34,454 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 03:41:34,454 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 03:41:34,469 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-23 03:41:34,469 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 03:41:34,470 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 03:41:34,470 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:41:34,471 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:41:34,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-23 03:41:34,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-23 03:41:34,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-23 03:41:34,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || (((((1 <= pumpRunning && tmp == systemActive) && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) [2022-11-23 03:41:34,497 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-23 03:41:34,497 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) [2022-11-23 03:41:34,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) && ((((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) [2022-11-23 03:41:34,499 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-23 03:41:34,499 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-23 03:41:34,499 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel == 1) || 1 <= \result) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0)) [2022-11-23 03:41:34,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) [2022-11-23 03:41:34,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) [2022-11-23 03:41:34,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || !(methAndRunningLastTime == 0) [2022-11-23 03:41:34,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) [2022-11-23 03:41:34,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0) [2022-11-23 03:41:34,524 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:41:34,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:41:34,525 INFO L158 Benchmark]: Toolchain (without parser) took 10589.04ms. Allocated memory was 172.0MB in the beginning and 220.2MB in the end (delta: 48.2MB). Free memory was 124.1MB in the beginning and 87.6MB in the end (delta: 36.5MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. [2022-11-23 03:41:34,525 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 172.0MB. Free memory was 141.4MB in the beginning and 141.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:41:34,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.23ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 105.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 03:41:34,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.49ms. Allocated memory is still 172.0MB. Free memory was 105.3MB in the beginning and 102.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:41:34,526 INFO L158 Benchmark]: Boogie Preprocessor took 31.28ms. Allocated memory is still 172.0MB. Free memory was 102.9MB in the beginning and 101.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:41:34,526 INFO L158 Benchmark]: RCFGBuilder took 581.07ms. Allocated memory is still 172.0MB. Free memory was 101.0MB in the beginning and 84.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 03:41:34,527 INFO L158 Benchmark]: TraceAbstraction took 9245.93ms. Allocated memory was 172.0MB in the beginning and 220.2MB in the end (delta: 48.2MB). Free memory was 84.3MB in the beginning and 93.9MB in the end (delta: -9.6MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2022-11-23 03:41:34,527 INFO L158 Benchmark]: Witness Printer took 85.25ms. Allocated memory is still 220.2MB. Free memory was 93.9MB in the beginning and 87.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 03:41:34,529 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 172.0MB. Free memory was 141.4MB in the beginning and 141.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.23ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 105.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.49ms. Allocated memory is still 172.0MB. Free memory was 105.3MB in the beginning and 102.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.28ms. Allocated memory is still 172.0MB. Free memory was 102.9MB in the beginning and 101.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.07ms. Allocated memory is still 172.0MB. Free memory was 101.0MB in the beginning and 84.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9245.93ms. Allocated memory was 172.0MB in the beginning and 220.2MB in the end (delta: 48.2MB). Free memory was 84.3MB in the beginning and 93.9MB in the end (delta: -9.6MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. * Witness Printer took 85.25ms. Allocated memory is still 220.2MB. Free memory was 93.9MB in the beginning and 87.6MB 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: 940]: 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 8 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1346 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1321 mSDsluCounter, 3401 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2173 mSDsCounter, 272 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 272 mSolverCounterUnsat, 1228 mSDtfsCounter, 862 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 433 GetRequests, 352 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=538occurred in iteration=11, InterpolantAutomatonStates: 71, 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, 12 MinimizatonAttempts, 214 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 992 PreInvPairs, 1076 NumberOfFragments, 1247 HoareAnnotationTreeSize, 992 FomulaSimplifications, 230 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 40 FomulaSimplificationsInter, 4722 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 875 NumberOfCodeBlocks, 875 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 860 ConstructedInterpolants, 0 QuantifiedInterpolants, 1504 SizeOfPredicates, 8 NumberOfNonLiveVariables, 959 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 171/178 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: 531]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 276]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) && ((((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || (((((1 <= pumpRunning && tmp == systemActive) && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 963]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 970]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: ((((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || \old(waterLevel) < 2) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: ((((!(waterLevel == 1) || 1 <= \result) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp___0) && 1 <= waterLevel) && tmp == 0)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-11-23 03:41:34,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b201003-52bc-49e5-a811-15ffd108fa22/bin/uautomizer-QkZJyEgLgS/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