./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa --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 d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:21:41,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:21:41,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:21:41,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:21:41,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:21:41,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:21:41,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:21:41,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:21:41,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:21:41,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:21:41,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:21:41,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:21:41,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:21:41,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:21:41,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:21:41,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:21:41,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:21:41,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:21:41,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:21:41,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:21:41,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:21:41,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:21:41,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:21:41,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:21:41,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:21:41,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:21:41,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:21:41,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:21:41,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:21:41,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:21:41,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:21:41,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:21:41,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:21:41,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:21:41,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:21:41,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:21:41,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:21:41,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:21:41,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:21:41,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:21:41,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:21:41,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:21:41,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:21:41,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:21:41,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:21:41,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:21:41,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:21:41,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:21:41,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:21:41,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:21:41,998 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:21:41,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:21:41,999 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:21:41,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:21:41,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:21:41,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:21:41,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:21:42,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:21:42,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:21:42,000 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:21:42,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:21:42,000 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:21:42,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:21:42,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:21:42,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:21:42,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:21:42,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:21:42,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:21:42,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:21:42,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:21:42,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:21:42,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:21:42,002 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:21:42,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:21:42,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:21:42,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:21:42,002 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_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f [2021-12-07 00:21:42,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:21:42,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:21:42,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:21:42,216 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:21:42,217 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:21:42,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-12-07 00:21:42,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/data/027caa7ea/bb9503df880d4c368d7fbe5c187adb18/FLAGcfbca2440 [2021-12-07 00:21:42,664 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:21:42,665 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-12-07 00:21:42,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/data/027caa7ea/bb9503df880d4c368d7fbe5c187adb18/FLAGcfbca2440 [2021-12-07 00:21:42,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/data/027caa7ea/bb9503df880d4c368d7fbe5c187adb18 [2021-12-07 00:21:42,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:21:42,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:21:42,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:21:42,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:21:42,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:21:42,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:42,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a5721a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42, skipping insertion in model container [2021-12-07 00:21:42,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:42,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:21:42,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:21:42,894 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_ee3245dd-e5eb-418c-a770-313251d1214d/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[19022,19035] [2021-12-07 00:21:42,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:21:42,905 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:21:42,959 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_ee3245dd-e5eb-418c-a770-313251d1214d/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[19022,19035] [2021-12-07 00:21:42,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:21:42,974 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:21:42,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42 WrapperNode [2021-12-07 00:21:42,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:21:42,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:21:42,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:21:42,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:21:42,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:42,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,015 INFO L137 Inliner]: procedures = 59, calls = 164, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 288 [2021-12-07 00:21:43,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:21:43,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:21:43,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:21:43,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:21:43,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:21:43,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:21:43,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:21:43,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:21:43,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (1/1) ... [2021-12-07 00:21:43,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:21:43,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:21:43,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:21:43,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-07 00:21:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-07 00:21:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-07 00:21:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-07 00:21:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-07 00:21:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-07 00:21:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-07 00:21:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-07 00:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-07 00:21:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-07 00:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-07 00:21:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-07 00:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-07 00:21:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-07 00:21:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-07 00:21:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-07 00:21:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-07 00:21:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-07 00:21:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:21:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-07 00:21:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-07 00:21:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:21:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:21:43,189 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:21:43,190 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:21:43,459 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:21:43,466 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:21:43,466 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 00:21:43,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:21:43 BoogieIcfgContainer [2021-12-07 00:21:43,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:21:43,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:21:43,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:21:43,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:21:43,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:21:42" (1/3) ... [2021-12-07 00:21:43,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bf8905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:21:43, skipping insertion in model container [2021-12-07 00:21:43,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:42" (2/3) ... [2021-12-07 00:21:43,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bf8905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:21:43, skipping insertion in model container [2021-12-07 00:21:43,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:21:43" (3/3) ... [2021-12-07 00:21:43,475 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2021-12-07 00:21:43,478 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:21:43,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:21:43,517 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:21:43,522 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 [2021-12-07 00:21:43,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:21:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 84 states have (on average 1.369047619047619) internal successors, (115), 95 states have internal predecessors, (115), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-07 00:21:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-07 00:21:43,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:21:43,549 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] [2021-12-07 00:21:43,550 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:21:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:21:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1815405350, now seen corresponding path program 1 times [2021-12-07 00:21:43,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:21:43,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916207505] [2021-12-07 00:21:43,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:21:43,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:21:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:43,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 00:21:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:21:43,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:21:43,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916207505] [2021-12-07 00:21:43,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916207505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:21:43,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:21:43,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:21:43,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048660700] [2021-12-07 00:21:43,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:21:43,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:21:43,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:21:43,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:21:43,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:21:43,758 INFO L87 Difference]: Start difference. First operand has 115 states, 84 states have (on average 1.369047619047619) internal successors, (115), 95 states have internal predecessors, (115), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:21:43,785 INFO L93 Difference]: Finished difference Result 222 states and 301 transitions. [2021-12-07 00:21:43,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:21:43,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-07 00:21:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:21:43,794 INFO L225 Difference]: With dead ends: 222 [2021-12-07 00:21:43,794 INFO L226 Difference]: Without dead ends: 106 [2021-12-07 00:21:43,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:21:43,800 INFO L933 BasicCegarLoop]: 147 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, 147 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 [2021-12-07 00:21:43,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:21:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-12-07 00:21:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-12-07 00:21:43,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 87 states have internal predecessors, (101), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-07 00:21:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 138 transitions. [2021-12-07 00:21:43,849 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 138 transitions. Word has length 25 [2021-12-07 00:21:43,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:21:43,849 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 138 transitions. [2021-12-07 00:21:43,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2021-12-07 00:21:43,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-07 00:21:43,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:21:43,853 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] [2021-12-07 00:21:43,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:21:43,854 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:21:43,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:21:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1446667371, now seen corresponding path program 1 times [2021-12-07 00:21:43,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:21:43,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097502657] [2021-12-07 00:21:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:21:43,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:21:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-07 00:21:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:21:43,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:21:43,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097502657] [2021-12-07 00:21:43,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097502657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:21:43,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:21:43,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:21:43,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849854395] [2021-12-07 00:21:43,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:21:43,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:21:43,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:21:43,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:21:43,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:21:43,929 INFO L87 Difference]: Start difference. First operand 106 states and 138 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:21:43,945 INFO L93 Difference]: Finished difference Result 173 states and 225 transitions. [2021-12-07 00:21:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:21:43,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-07 00:21:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:21:43,947 INFO L225 Difference]: With dead ends: 173 [2021-12-07 00:21:43,947 INFO L226 Difference]: Without dead ends: 97 [2021-12-07 00:21:43,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:21:43,949 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 17 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 228 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 [2021-12-07 00:21:43,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 228 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:21:43,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-12-07 00:21:43,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-12-07 00:21:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.323943661971831) internal successors, (94), 81 states have internal predecessors, (94), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-07 00:21:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2021-12-07 00:21:43,959 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 126 transitions. Word has length 26 [2021-12-07 00:21:43,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:21:43,959 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 126 transitions. [2021-12-07 00:21:43,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 126 transitions. [2021-12-07 00:21:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-07 00:21:43,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:21:43,961 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] [2021-12-07 00:21:43,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:21:43,961 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:21:43,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:21:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash -752091658, now seen corresponding path program 1 times [2021-12-07 00:21:43,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:21:43,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362550344] [2021-12-07 00:21:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:21:43,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:21:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 00:21:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:21:44,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:21:44,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362550344] [2021-12-07 00:21:44,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362550344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:21:44,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:21:44,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:21:44,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038194281] [2021-12-07 00:21:44,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:21:44,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:21:44,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:21:44,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:21:44,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:21:44,017 INFO L87 Difference]: Start difference. First operand 97 states and 126 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:44,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:21:44,050 INFO L93 Difference]: Finished difference Result 275 states and 363 transitions. [2021-12-07 00:21:44,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:21:44,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-07 00:21:44,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:21:44,052 INFO L225 Difference]: With dead ends: 275 [2021-12-07 00:21:44,052 INFO L226 Difference]: Without dead ends: 185 [2021-12-07 00:21:44,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:21:44,055 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 118 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 274 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 [2021-12-07 00:21:44,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 274 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:21:44,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-07 00:21:44,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2021-12-07 00:21:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 131 states have (on average 1.3435114503816794) internal successors, (176), 150 states have internal predecessors, (176), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2021-12-07 00:21:44,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2021-12-07 00:21:44,077 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 31 [2021-12-07 00:21:44,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:21:44,077 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2021-12-07 00:21:44,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2021-12-07 00:21:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-07 00:21:44,080 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:21:44,080 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, 1, 1] [2021-12-07 00:21:44,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:21:44,080 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:21:44,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:21:44,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1994729148, now seen corresponding path program 1 times [2021-12-07 00:21:44,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:21:44,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600682686] [2021-12-07 00:21:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:21:44,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:21:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:44,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-07 00:21:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:44,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:21:44,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:21:44,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600682686] [2021-12-07 00:21:44,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600682686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:21:44,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:21:44,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:21:44,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576082660] [2021-12-07 00:21:44,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:21:44,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:21:44,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:21:44,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:21:44,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:21:44,150 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-12-07 00:21:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:21:44,214 INFO L93 Difference]: Finished difference Result 526 states and 715 transitions. [2021-12-07 00:21:44,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:21:44,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2021-12-07 00:21:44,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:21:44,218 INFO L225 Difference]: With dead ends: 526 [2021-12-07 00:21:44,218 INFO L226 Difference]: Without dead ends: 351 [2021-12-07 00:21:44,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:21:44,220 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 95 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:21:44,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 522 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:21:44,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-12-07 00:21:44,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2021-12-07 00:21:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 246 states have (on average 1.3252032520325203) internal successors, (326), 281 states have internal predecessors, (326), 64 states have call successors, (64), 36 states have call predecessors, (64), 34 states have return successors, (66), 40 states have call predecessors, (66), 64 states have call successors, (66) [2021-12-07 00:21:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 456 transitions. [2021-12-07 00:21:44,250 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 456 transitions. Word has length 34 [2021-12-07 00:21:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:21:44,250 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 456 transitions. [2021-12-07 00:21:44,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-12-07 00:21:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 456 transitions. [2021-12-07 00:21:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 00:21:44,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:21:44,254 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, 1, 1, 1, 1] [2021-12-07 00:21:44,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:21:44,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:21:44,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:21:44,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1105434487, now seen corresponding path program 1 times [2021-12-07 00:21:44,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:21:44,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089071947] [2021-12-07 00:21:44,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:21:44,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:21:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:21:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:21:44,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:21:44,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089071947] [2021-12-07 00:21:44,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089071947] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:21:44,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:21:44,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:21:44,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945363955] [2021-12-07 00:21:44,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:21:44,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:21:44,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:21:44,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:21:44,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:21:44,310 INFO L87 Difference]: Start difference. First operand 345 states and 456 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:44,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:21:44,442 INFO L93 Difference]: Finished difference Result 691 states and 941 transitions. [2021-12-07 00:21:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:21:44,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-12-07 00:21:44,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:21:44,446 INFO L225 Difference]: With dead ends: 691 [2021-12-07 00:21:44,446 INFO L226 Difference]: Without dead ends: 516 [2021-12-07 00:21:44,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:21:44,448 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 203 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:21:44,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 951 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:21:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2021-12-07 00:21:44,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 506. [2021-12-07 00:21:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 361 states have (on average 1.3185595567867037) internal successors, (476), 412 states have internal predecessors, (476), 94 states have call successors, (94), 52 states have call predecessors, (94), 50 states have return successors, (98), 59 states have call predecessors, (98), 94 states have call successors, (98) [2021-12-07 00:21:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 668 transitions. [2021-12-07 00:21:44,485 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 668 transitions. Word has length 36 [2021-12-07 00:21:44,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:21:44,486 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 668 transitions. [2021-12-07 00:21:44,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:21:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 668 transitions. [2021-12-07 00:21:44,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-07 00:21:44,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:21:44,490 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, 1, 1, 1, 1, 1, 1] [2021-12-07 00:21:44,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:21:44,490 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:21:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:21:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash 695972842, now seen corresponding path program 1 times [2021-12-07 00:21:44,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:21:44,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031868461] [2021-12-07 00:21:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:21:44,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:21:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:21:44,510 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:21:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:21:44,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:21:44,541 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:21:44,542 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:21:44,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:21:44,546 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-07 00:21:44,548 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:21:44,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:21:44 BoogieIcfgContainer [2021-12-07 00:21:44,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:21:44,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:21:44,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:21:44,581 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:21:44,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:21:43" (3/4) ... [2021-12-07 00:21:44,583 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-07 00:21:44,642 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:21:44,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:21:44,642 INFO L158 Benchmark]: Toolchain (without parser) took 1956.56ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 57.5MB in the beginning and 51.5MB in the end (delta: 6.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2021-12-07 00:21:44,643 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:21:44,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.52ms. Allocated memory is still 77.6MB. Free memory was 57.5MB in the beginning and 38.2MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-07 00:21:44,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.65ms. Allocated memory is still 77.6MB. Free memory was 38.2MB in the beginning and 35.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 00:21:44,644 INFO L158 Benchmark]: Boogie Preprocessor took 34.57ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 35.4MB in the beginning and 73.6MB in the end (delta: -38.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-12-07 00:21:44,644 INFO L158 Benchmark]: RCFGBuilder took 417.69ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 55.9MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-07 00:21:44,645 INFO L158 Benchmark]: TraceAbstraction took 1110.44ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 55.7MB in the end (delta: -233.7kB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2021-12-07 00:21:44,645 INFO L158 Benchmark]: Witness Printer took 61.29ms. Allocated memory is still 94.4MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 00:21:44,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.52ms. Allocated memory is still 77.6MB. Free memory was 57.5MB in the beginning and 38.2MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.65ms. Allocated memory is still 77.6MB. Free memory was 38.2MB in the beginning and 35.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.57ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 35.4MB in the beginning and 73.6MB in the end (delta: -38.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 417.69ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 55.9MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1110.44ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 55.7MB in the end (delta: -233.7kB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 61.29ms. Allocated memory is still 94.4MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 1006]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L377] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L379] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L385] tmp = __VERIFIER_nondet_int() [L387] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L389] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] COND TRUE waterLevel < 2 [L456] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L389] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND TRUE \read(tmp___1) [L417] CALL stopSystem() [L344] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L351] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L417] RET stopSystem() [L424] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L108] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L115] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L1018] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND TRUE tmp___0 == 2 [L1028] CALL, EXPR isPumpRunning() [L258] int retValue_acc ; [L261] retValue_acc = pumpRunning [L262] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L1028] RET, EXPR isPumpRunning() [L1028] tmp___1 = isPumpRunning() [L1030] COND FALSE !(\read(tmp___1)) [L1034] CALL __automaton_fail() [L1006] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 437 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 433 mSDsluCounter, 2122 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1306 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 816 mSDtfsCounter, 160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! [2021-12-07 00:21:44,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3245dd-e5eb-418c-a770-313251d1214d/bin/uautomizer-DrprNOufMa/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE