./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF --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 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:49:46,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:49:46,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:49:46,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:49:46,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:49:46,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:49:46,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:49:46,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:49:46,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:49:46,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:49:46,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:49:46,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:49:46,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:49:46,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:49:46,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:49:46,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:49:46,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:49:46,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:49:46,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:49:46,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:49:46,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:49:46,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:49:46,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:49:46,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:49:46,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:49:46,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:49:46,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:49:46,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:49:46,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:49:46,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:49:46,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:49:46,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:49:46,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:49:46,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:49:46,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:49:46,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:49:46,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:49:46,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:49:46,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:49:46,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:49:46,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:49:46,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:49:46,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:49:46,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:49:46,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:49:46,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:49:46,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:49:46,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:49:46,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:49:46,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:49:46,218 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:49:46,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:49:46,219 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:49:46,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:49:46,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:49:46,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:49:46,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:49:46,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:49:46,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:49:46,221 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:49:46,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:49:46,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:49:46,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:49:46,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:49:46,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:49:46,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:49:46,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:49:46,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:49:46,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:49:46,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:49:46,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:49:46,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:49:46,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:49:46,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:49:46,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:49:46,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:49:46,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 [2021-11-20 06:49:46,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:49:46,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:49:46,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:49:46,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:49:46,496 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:49:46,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2021-11-20 06:49:46,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/data/3135524cc/bede8620796b4843b3b0663d42ebb866/FLAG563bfb4bd [2021-11-20 06:49:47,188 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:49:47,188 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2021-11-20 06:49:47,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/data/3135524cc/bede8620796b4843b3b0663d42ebb866/FLAG563bfb4bd [2021-11-20 06:49:47,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/data/3135524cc/bede8620796b4843b3b0663d42ebb866 [2021-11-20 06:49:47,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:49:47,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:49:47,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:49:47,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:49:47,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:49:47,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:47,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c455d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47, skipping insertion in model container [2021-11-20 06:49:47,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:47,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:49:47,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:49:47,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2021-11-20 06:49:47,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:49:47,803 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:49:47,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2021-11-20 06:49:47,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:49:47,906 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:49:47,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47 WrapperNode [2021-11-20 06:49:47,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:49:47,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:49:47,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:49:47,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:49:47,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:47,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:47,969 INFO L137 Inliner]: procedures = 53, calls = 153, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 219 [2021-11-20 06:49:47,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:49:47,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:49:47,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:49:47,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:49:47,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:47,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:47,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:47,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:48,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:48,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:48,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:48,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:49:48,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:49:48,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:49:48,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:49:48,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (1/1) ... [2021-11-20 06:49:48,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:49:48,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:48,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:49:48,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:49:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:49:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-20 06:49:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-20 06:49:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-20 06:49:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-20 06:49:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-20 06:49:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-20 06:49:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-20 06:49:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-20 06:49:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-20 06:49:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-20 06:49:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-20 06:49:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-20 06:49:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:49:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-20 06:49:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-20 06:49:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:49:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:49:48,183 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:49:48,185 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:49:48,483 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:49:48,495 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:49:48,507 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:49:48,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:48 BoogieIcfgContainer [2021-11-20 06:49:48,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:49:48,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:49:48,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:49:48,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:49:48,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:49:47" (1/3) ... [2021-11-20 06:49:48,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88dd1a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:48, skipping insertion in model container [2021-11-20 06:49:48,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:47" (2/3) ... [2021-11-20 06:49:48,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88dd1a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:48, skipping insertion in model container [2021-11-20 06:49:48,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:48" (3/3) ... [2021-11-20 06:49:48,517 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2021-11-20 06:49:48,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:49:48,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:49:48,570 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:49:48,577 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:49:48,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:49:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 66 states have internal predecessors, (81), 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) [2021-11-20 06:49:48,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 06:49:48,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:48,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:48,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:48,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:48,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1968968141, now seen corresponding path program 1 times [2021-11-20 06:49:48,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:48,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779582332] [2021-11-20 06:49:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:48,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:48,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:49:48,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:48,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779582332] [2021-11-20 06:49:48,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779582332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:48,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:48,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:49:48,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024204888] [2021-11-20 06:49:48,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:48,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:49:48,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:49:48,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:49:48,868 INFO L87 Difference]: Start difference. First operand has 79 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 66 states have internal predecessors, (81), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:48,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:48,914 INFO L93 Difference]: Finished difference Result 150 states and 201 transitions. [2021-11-20 06:49:48,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:49:48,917 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 06:49:48,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:48,949 INFO L225 Difference]: With dead ends: 150 [2021-11-20 06:49:48,949 INFO L226 Difference]: Without dead ends: 70 [2021-11-20 06:49:48,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:49:48,957 INFO L933 BasicCegarLoop]: 97 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, 97 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 [2021-11-20 06:49:48,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:49:48,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-20 06:49:48,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-20 06:49:48,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 58 states have internal predecessors, (67), 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) [2021-11-20 06:49:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2021-11-20 06:49:48,999 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 19 [2021-11-20 06:49:48,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:48,999 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2021-11-20 06:49:49,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2021-11-20 06:49:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 06:49:49,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:49,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:49,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:49:49,003 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:49,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:49,004 INFO L85 PathProgramCache]: Analyzing trace with hash 676286126, now seen corresponding path program 1 times [2021-11-20 06:49:49,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:49,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058225421] [2021-11-20 06:49:49,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:49,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:49,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:49:49,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:49,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058225421] [2021-11-20 06:49:49,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058225421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:49,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:49,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:49:49,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734202524] [2021-11-20 06:49:49,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:49,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:49:49,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:49,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:49:49,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:49:49,084 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:49,099 INFO L93 Difference]: Finished difference Result 101 states and 125 transitions. [2021-11-20 06:49:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:49:49,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 06:49:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:49,101 INFO L225 Difference]: With dead ends: 101 [2021-11-20 06:49:49,101 INFO L226 Difference]: Without dead ends: 61 [2021-11-20 06:49:49,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:49:49,104 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 17 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 128 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 [2021-11-20 06:49:49,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 128 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:49:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-20 06:49:49,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-20 06:49:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 52 states have internal predecessors, (60), 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) [2021-11-20 06:49:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2021-11-20 06:49:49,115 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 20 [2021-11-20 06:49:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:49,115 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-20 06:49:49,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2021-11-20 06:49:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 06:49:49,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:49,117 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:49:49,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:49:49,118 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:49,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1105447611, now seen corresponding path program 1 times [2021-11-20 06:49:49,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:49,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168651460] [2021-11-20 06:49:49,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:49,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:49:49,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:49,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168651460] [2021-11-20 06:49:49,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168651460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:49,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:49,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:49:49,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82588326] [2021-11-20 06:49:49,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:49,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:49:49,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:49,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:49:49,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:49:49,189 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:49,225 INFO L93 Difference]: Finished difference Result 167 states and 213 transitions. [2021-11-20 06:49:49,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:49:49,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-20 06:49:49,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:49,228 INFO L225 Difference]: With dead ends: 167 [2021-11-20 06:49:49,229 INFO L226 Difference]: Without dead ends: 113 [2021-11-20 06:49:49,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:49:49,231 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 68 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:49,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 157 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:49:49,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-20 06:49:49,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2021-11-20 06:49:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 92 states have internal predecessors, (108), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 06:49:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2021-11-20 06:49:49,265 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 25 [2021-11-20 06:49:49,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:49,265 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2021-11-20 06:49:49,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,266 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2021-11-20 06:49:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:49:49,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:49,270 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:49:49,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:49:49,270 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash -698168017, now seen corresponding path program 1 times [2021-11-20 06:49:49,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:49,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337809194] [2021-11-20 06:49:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:49,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:49:49,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:49,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337809194] [2021-11-20 06:49:49,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337809194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:49,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:49,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:49:49,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158015087] [2021-11-20 06:49:49,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:49,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:49:49,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:49,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:49:49,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:49:49,425 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:49,538 INFO L93 Difference]: Finished difference Result 304 states and 401 transitions. [2021-11-20 06:49:49,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:49:49,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 06:49:49,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:49,547 INFO L225 Difference]: With dead ends: 304 [2021-11-20 06:49:49,547 INFO L226 Difference]: Without dead ends: 201 [2021-11-20 06:49:49,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:49:49,550 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 48 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:49,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 303 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:49:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-20 06:49:49,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-20 06:49:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 146 states have (on average 1.3150684931506849) internal successors, (192), 165 states have internal predecessors, (192), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2021-11-20 06:49:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 258 transitions. [2021-11-20 06:49:49,616 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 258 transitions. Word has length 28 [2021-11-20 06:49:49,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:49,616 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 258 transitions. [2021-11-20 06:49:49,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,617 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 258 transitions. [2021-11-20 06:49:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 06:49:49,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:49,620 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:49:49,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:49:49,620 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:49,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash 344714708, now seen corresponding path program 1 times [2021-11-20 06:49:49,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:49,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436684680] [2021-11-20 06:49:49,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:49,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:49:49,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:49,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436684680] [2021-11-20 06:49:49,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436684680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:49,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:49,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:49:49,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854446589] [2021-11-20 06:49:49,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:49,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:49:49,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:49,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:49:49,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:49:49,675 INFO L87 Difference]: Start difference. First operand 201 states and 258 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:49,699 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2021-11-20 06:49:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:49:49,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-20 06:49:49,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:49,702 INFO L225 Difference]: With dead ends: 337 [2021-11-20 06:49:49,702 INFO L226 Difference]: Without dead ends: 143 [2021-11-20 06:49:49,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:49:49,706 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:49,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:49:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-20 06:49:49,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2021-11-20 06:49:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 117 states have internal predecessors, (138), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 06:49:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 170 transitions. [2021-11-20 06:49:49,744 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 170 transitions. Word has length 30 [2021-11-20 06:49:49,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:49,745 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 170 transitions. [2021-11-20 06:49:49,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:49:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 170 transitions. [2021-11-20 06:49:49,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 06:49:49,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:49,747 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:49:49,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:49:49,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:49,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:49,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1162418059, now seen corresponding path program 1 times [2021-11-20 06:49:49,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:49,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146308051] [2021-11-20 06:49:49,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:49,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:49:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:49:49,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:49,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146308051] [2021-11-20 06:49:49,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146308051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:49,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:49,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:49:49,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643289359] [2021-11-20 06:49:49,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:49,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:49:49,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:49,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:49:49,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:49:49,877 INFO L87 Difference]: Start difference. First operand 141 states and 170 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:49:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:49,959 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2021-11-20 06:49:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:49:49,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-20 06:49:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:49,960 INFO L225 Difference]: With dead ends: 151 [2021-11-20 06:49:49,960 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:49:49,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:49:49,962 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 48 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:49,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 153 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:49:49,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:49:49,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:49:49,964 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) [2021-11-20 06:49:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:49:49,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-11-20 06:49:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:49,965 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:49:49,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:49:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:49:49,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:49:49,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:49:49,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:49:49,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:49:50,498 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 739 746) the Hoare annotation is: true [2021-11-20 06:49:50,498 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 739 746) no Hoare annotation was computed. [2021-11-20 06:49:50,499 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 739 746) no Hoare annotation was computed. [2021-11-20 06:49:50,499 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 486 497) the Hoare annotation is: true [2021-11-20 06:49:50,499 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 486 497) no Hoare annotation was computed. [2021-11-20 06:49:50,500 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 486 497) no Hoare annotation was computed. [2021-11-20 06:49:50,500 INFO L854 garLoopResultBuilder]: At program point L535(lines 530 538) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2021-11-20 06:49:50,500 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 657 680) no Hoare annotation was computed. [2021-11-20 06:49:50,501 INFO L858 garLoopResultBuilder]: For program point L643(line 643) no Hoare annotation was computed. [2021-11-20 06:49:50,502 INFO L858 garLoopResultBuilder]: For program point L668-1(lines 668 674) no Hoare annotation was computed. [2021-11-20 06:49:50,502 INFO L854 garLoopResultBuilder]: At program point L763(lines 758 766) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-11-20 06:49:50,502 INFO L858 garLoopResultBuilder]: For program point L697(lines 697 705) no Hoare annotation was computed. [2021-11-20 06:49:50,503 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 710) no Hoare annotation was computed. [2021-11-20 06:49:50,503 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 470) no Hoare annotation was computed. [2021-11-20 06:49:50,503 INFO L854 garLoopResultBuilder]: At program point L466-2(lines 462 473) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-20 06:49:50,504 INFO L854 garLoopResultBuilder]: At program point L644(lines 639 646) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-20 06:49:50,504 INFO L858 garLoopResultBuilder]: For program point L661-1(lines 660 679) no Hoare annotation was computed. [2021-11-20 06:49:50,504 INFO L858 garLoopResultBuilder]: For program point L839(lines 839 845) no Hoare annotation was computed. [2021-11-20 06:49:50,504 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 848) no Hoare annotation was computed. [2021-11-20 06:49:50,504 INFO L854 garLoopResultBuilder]: At program point L835-1(lines 827 851) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2021-11-20 06:49:50,505 INFO L854 garLoopResultBuilder]: At program point L703(line 703) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-20 06:49:50,505 INFO L854 garLoopResultBuilder]: At program point L699(line 699) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-20 06:49:50,505 INFO L854 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-20 06:49:50,505 INFO L858 garLoopResultBuilder]: For program point L695-1(line 695) no Hoare annotation was computed. [2021-11-20 06:49:50,505 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 657 680) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-11-20 06:49:50,505 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 657 680) no Hoare annotation was computed. [2021-11-20 06:49:50,506 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 643) no Hoare annotation was computed. [2021-11-20 06:49:50,506 INFO L854 garLoopResultBuilder]: At program point L708(line 708) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-11-20 06:49:50,506 INFO L854 garLoopResultBuilder]: At program point L708-1(lines 689 713) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-11-20 06:49:50,507 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 542 571) no Hoare annotation was computed. [2021-11-20 06:49:50,507 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 542 571) the Hoare annotation is: true [2021-11-20 06:49:50,507 INFO L861 garLoopResultBuilder]: At program point L567(lines 542 571) the Hoare annotation is: true [2021-11-20 06:49:50,507 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-11-20 06:49:50,508 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 560) no Hoare annotation was computed. [2021-11-20 06:49:50,509 INFO L861 garLoopResultBuilder]: At program point L556-1(lines 556 560) the Hoare annotation is: true [2021-11-20 06:49:50,509 INFO L858 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2021-11-20 06:49:50,509 INFO L861 garLoopResultBuilder]: At program point L552-2(lines 552 566) the Hoare annotation is: true [2021-11-20 06:49:50,509 INFO L861 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: true [2021-11-20 06:49:50,509 INFO L858 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2021-11-20 06:49:50,510 INFO L858 garLoopResultBuilder]: For program point L865(lines 865 869) no Hoare annotation was computed. [2021-11-20 06:49:50,510 INFO L861 garLoopResultBuilder]: At program point L634(lines 615 637) the Hoare annotation is: true [2021-11-20 06:49:50,510 INFO L854 garLoopResultBuilder]: At program point L601(lines 597 603) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:49:50,511 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:49:50,511 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:49:50,511 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:49:50,513 INFO L861 garLoopResultBuilder]: At program point L916(lines 853 920) the Hoare annotation is: true [2021-11-20 06:49:50,513 INFO L858 garLoopResultBuilder]: For program point L883(lines 883 889) no Hoare annotation was computed. [2021-11-20 06:49:50,513 INFO L858 garLoopResultBuilder]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2021-11-20 06:49:50,513 INFO L854 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:49:50,514 INFO L854 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: false [2021-11-20 06:49:50,514 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:49:50,514 INFO L854 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:49:50,514 INFO L854 garLoopResultBuilder]: At program point L913(lines 862 914) the Hoare annotation is: false [2021-11-20 06:49:50,514 INFO L854 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:49:50,515 INFO L858 garLoopResultBuilder]: For program point L901(lines 901 907) no Hoare annotation was computed. [2021-11-20 06:49:50,515 INFO L861 garLoopResultBuilder]: At program point L612(lines 605 614) the Hoare annotation is: true [2021-11-20 06:49:50,515 INFO L854 garLoopResultBuilder]: At program point L901-2(lines 893 908) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:49:50,515 INFO L858 garLoopResultBuilder]: For program point L864(lines 863 912) no Hoare annotation was computed. [2021-11-20 06:49:50,515 INFO L858 garLoopResultBuilder]: For program point L893(lines 893 908) no Hoare annotation was computed. [2021-11-20 06:49:50,516 INFO L854 garLoopResultBuilder]: At program point L823(lines 818 825) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:49:50,516 INFO L854 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:49:50,516 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 632) no Hoare annotation was computed. [2021-11-20 06:49:50,517 INFO L854 garLoopResultBuilder]: At program point L815(lines 803 817) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:49:50,518 INFO L858 garLoopResultBuilder]: For program point L625-2(lines 625 632) no Hoare annotation was computed. [2021-11-20 06:49:50,519 INFO L854 garLoopResultBuilder]: At program point L910(lines 863 912) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:49:50,519 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2021-11-20 06:49:50,519 INFO L858 garLoopResultBuilder]: For program point L873-1(lines 873 879) no Hoare annotation was computed. [2021-11-20 06:49:50,519 INFO L858 garLoopResultBuilder]: For program point L807(lines 807 813) no Hoare annotation was computed. [2021-11-20 06:49:50,520 INFO L858 garLoopResultBuilder]: For program point L807-1(lines 807 813) no Hoare annotation was computed. [2021-11-20 06:49:50,520 INFO L854 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:49:50,520 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 474 485) no Hoare annotation was computed. [2021-11-20 06:49:50,520 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 474 485) no Hoare annotation was computed. [2021-11-20 06:49:50,522 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 474 485) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-11-20 06:49:50,522 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 681 687) no Hoare annotation was computed. [2021-11-20 06:49:50,522 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 681 687) the Hoare annotation is: true [2021-11-20 06:49:50,522 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 747 757) the Hoare annotation is: true [2021-11-20 06:49:50,522 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 747 757) no Hoare annotation was computed. [2021-11-20 06:49:50,523 INFO L861 garLoopResultBuilder]: At program point L503(lines 498 506) the Hoare annotation is: true [2021-11-20 06:49:50,523 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 747 757) no Hoare annotation was computed. [2021-11-20 06:49:50,528 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 06:49:50,534 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:49:50,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:49:50 BoogieIcfgContainer [2021-11-20 06:49:50,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:49:50,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:49:50,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:49:50,575 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:49:50,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:48" (3/4) ... [2021-11-20 06:49:50,579 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:49:50,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-20 06:49:50,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-20 06:49:50,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-20 06:49:50,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-20 06:49:50,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-20 06:49:50,587 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-20 06:49:50,587 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-20 06:49:50,601 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2021-11-20 06:49:50,602 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-20 06:49:50,602 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:49:50,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:49:50,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:49:50,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:49:50,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:49:50,631 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-11-20 06:49:50,633 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) [2021-11-20 06:49:50,634 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2021-11-20 06:49:50,635 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2021-11-20 06:49:50,635 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2021-11-20 06:49:50,636 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-11-20 06:49:50,680 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:49:50,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:49:50,681 INFO L158 Benchmark]: Toolchain (without parser) took 3214.23ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 63.2MB in the beginning and 86.6MB in the end (delta: -23.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-11-20 06:49:50,682 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 75.5MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:49:50,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.63ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 44.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 06:49:50,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.95ms. Allocated memory is still 92.3MB. Free memory was 44.5MB in the beginning and 42.2MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:49:50,685 INFO L158 Benchmark]: Boogie Preprocessor took 58.77ms. Allocated memory is still 92.3MB. Free memory was 42.2MB in the beginning and 40.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:49:50,686 INFO L158 Benchmark]: RCFGBuilder took 479.12ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 56.7MB in the end (delta: -15.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-11-20 06:49:50,686 INFO L158 Benchmark]: TraceAbstraction took 2061.49ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 56.1MB in the beginning and 92.0MB in the end (delta: -35.9MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2021-11-20 06:49:50,687 INFO L158 Benchmark]: Witness Printer took 106.09ms. Allocated memory is still 123.7MB. Free memory was 92.0MB in the beginning and 86.6MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:49:50,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 75.5MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.63ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 44.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.95ms. Allocated memory is still 92.3MB. Free memory was 44.5MB in the beginning and 42.2MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.77ms. Allocated memory is still 92.3MB. Free memory was 42.2MB in the beginning and 40.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 479.12ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 56.7MB in the end (delta: -15.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2061.49ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 56.1MB in the beginning and 92.0MB in the end (delta: -35.9MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Witness Printer took 106.09ms. Allocated memory is still 123.7MB. Free memory was 92.0MB in the beginning and 86.6MB in the end (delta: 5.4MB). 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: 643]: 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, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 888 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 447 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 441 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 282 PreInvPairs, 326 NumberOfFragments, 243 HoareAnnotationTreeSize, 282 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 919 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 639]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 803]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 462]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 06:49:50,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf648165-d77b-4eb8-90c1-7d58094d78df/bin/uautomizer-DQz5hQGWxF/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