./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX --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 263a891a69e751217ac30b9b114998fc0120cc8bcbbdd67ab0f365106c54376d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:43:21,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:43:21,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:43:21,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:43:21,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:43:21,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:43:21,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:43:21,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:43:21,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:43:21,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:43:21,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:43:21,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:43:21,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:43:21,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:43:21,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:43:21,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:43:21,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:43:21,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:43:21,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:43:21,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:43:21,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:43:21,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:43:21,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:43:21,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:43:21,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:43:21,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:43:21,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:43:21,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:43:21,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:43:21,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:43:21,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:43:21,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:43:21,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:43:21,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:43:21,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:43:21,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:43:21,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:43:21,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:43:21,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:43:21,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:43:21,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:43:21,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:43:21,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:43:21,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:43:21,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:43:21,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:43:21,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:43:21,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:43:21,837 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:43:21,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:43:21,838 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:43:21,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:43:21,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:43:21,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:43:21,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:43:21,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:43:21,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:43:21,840 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:43:21,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:43:21,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:43:21,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:43:21,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:43:21,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:43:21,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:43:21,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:43:21,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:43:21,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:43:21,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:43:21,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:43:21,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:43:21,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:43:21,844 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:43:21,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:43:21,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:43:21,844 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_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 263a891a69e751217ac30b9b114998fc0120cc8bcbbdd67ab0f365106c54376d [2021-11-09 09:43:22,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:43:22,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:43:22,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:43:22,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:43:22,246 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:43:22,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2021-11-09 09:43:22,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/data/31674a368/c28d1b7b16b944829f19b09261b02dbe/FLAGbf20953f9 [2021-11-09 09:43:23,118 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:43:23,125 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2021-11-09 09:43:23,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/data/31674a368/c28d1b7b16b944829f19b09261b02dbe/FLAGbf20953f9 [2021-11-09 09:43:23,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/data/31674a368/c28d1b7b16b944829f19b09261b02dbe [2021-11-09 09:43:23,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:43:23,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:43:23,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:43:23,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:43:23,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:43:23,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:23,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45eaffeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23, skipping insertion in model container [2021-11-09 09:43:23,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:23,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:43:23,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:43:23,834 WARN L228 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_aa744bc7-da90-4f53-a67b-36b3511b536e/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2021-11-09 09:43:23,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:43:23,849 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:43:23,942 WARN L228 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_aa744bc7-da90-4f53-a67b-36b3511b536e/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2021-11-09 09:43:23,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:43:23,967 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:43:23,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23 WrapperNode [2021-11-09 09:43:23,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:43:23,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:43:23,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:43:23,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:43:23,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:23,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:43:24,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:43:24,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:43:24,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:43:24,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:43:24,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:43:24,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:43:24,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:43:24,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (1/1) ... [2021-11-09 09:43:24,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:43:24,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:43:24,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:43:24,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:43:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:43:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:43:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:43:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:43:25,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:43:25,331 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2021-11-09 09:43:25,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:43:25 BoogieIcfgContainer [2021-11-09 09:43:25,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:43:25,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:43:25,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:43:25,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:43:25,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:43:23" (1/3) ... [2021-11-09 09:43:25,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72acd29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:43:25, skipping insertion in model container [2021-11-09 09:43:25,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:43:23" (2/3) ... [2021-11-09 09:43:25,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72acd29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:43:25, skipping insertion in model container [2021-11-09 09:43:25,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:43:25" (3/3) ... [2021-11-09 09:43:25,347 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2021-11-09 09:43:25,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:43:25,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-09 09:43:25,507 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:43:25,518 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 [2021-11-09 09:43:25,518 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-09 09:43:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 states have internal predecessors, (96), 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) [2021-11-09 09:43:25,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-09 09:43:25,555 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:43:25,556 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:43:25,557 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:43:25,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:43:25,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1390476085, now seen corresponding path program 1 times [2021-11-09 09:43:25,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:43:25,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993399980] [2021-11-09 09:43:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:43:25,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:43:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:43:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:43:25,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:43:25,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993399980] [2021-11-09 09:43:25,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993399980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:43:25,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:43:25,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:43:25,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521954261] [2021-11-09 09:43:25,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:43:25,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:43:26,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:43:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:43:26,010 INFO L87 Difference]: Start difference. First operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 states have internal predecessors, (96), 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) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-11-09 09:43:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:43:26,061 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2021-11-09 09:43:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:43:26,062 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) Word has length 18 [2021-11-09 09:43:26,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:43:26,076 INFO L225 Difference]: With dead ends: 124 [2021-11-09 09:43:26,076 INFO L226 Difference]: Without dead ends: 61 [2021-11-09 09:43:26,081 INFO L786 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 [2021-11-09 09:43:26,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-09 09:43:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-09 09:43:26,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 60 states have internal predecessors, (84), 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) [2021-11-09 09:43:26,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2021-11-09 09:43:26,133 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2021-11-09 09:43:26,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:43:26,133 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2021-11-09 09:43:26,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-11-09 09:43:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2021-11-09 09:43:26,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-09 09:43:26,136 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:43:26,136 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:43:26,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:43:26,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:43:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:43:26,138 INFO L85 PathProgramCache]: Analyzing trace with hash -963834589, now seen corresponding path program 1 times [2021-11-09 09:43:26,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:43:26,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950015711] [2021-11-09 09:43:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:43:26,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:43:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:43:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:43:26,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:43:26,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950015711] [2021-11-09 09:43:26,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950015711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:43:26,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:43:26,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:43:26,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730369933] [2021-11-09 09:43:26,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:43:26,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:43:26,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:43:26,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:43:26,264 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-09 09:43:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:43:26,276 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2021-11-09 09:43:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:43:26,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) Word has length 19 [2021-11-09 09:43:26,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:43:26,278 INFO L225 Difference]: With dead ends: 61 [2021-11-09 09:43:26,279 INFO L226 Difference]: Without dead ends: 31 [2021-11-09 09:43:26,280 INFO L786 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 [2021-11-09 09:43:26,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-09 09:43:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-09 09:43:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 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) [2021-11-09 09:43:26,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-11-09 09:43:26,287 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2021-11-09 09:43:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:43:26,287 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-11-09 09:43:26,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-09 09:43:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-11-09 09:43:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-09 09:43:26,289 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:43:26,289 INFO L513 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] [2021-11-09 09:43:26,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:43:26,290 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:43:26,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:43:26,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2021-11-09 09:43:26,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:43:26,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974765622] [2021-11-09 09:43:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:43:26,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:43:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:43:26,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:43:26,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:43:26,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974765622] [2021-11-09 09:43:26,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974765622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:43:26,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:43:26,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:43:26,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439742033] [2021-11-09 09:43:26,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:43:26,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:43:26,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:43:26,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:43:26,484 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-11-09 09:43:26,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:43:26,578 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2021-11-09 09:43:26,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:43:26,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) Word has length 24 [2021-11-09 09:43:26,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:43:26,581 INFO L225 Difference]: With dead ends: 81 [2021-11-09 09:43:26,581 INFO L226 Difference]: Without dead ends: 56 [2021-11-09 09:43:26,582 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:43:26,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-09 09:43:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2021-11-09 09:43:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 51 states have internal predecessors, (75), 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) [2021-11-09 09:43:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2021-11-09 09:43:26,596 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2021-11-09 09:43:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:43:26,597 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-11-09 09:43:26,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-11-09 09:43:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2021-11-09 09:43:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-09 09:43:26,599 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:43:26,599 INFO L513 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] [2021-11-09 09:43:26,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:43:26,600 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:43:26,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:43:26,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2021-11-09 09:43:26,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:43:26,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538906697] [2021-11-09 09:43:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:43:26,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:43:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:43:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:43:26,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:43:26,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538906697] [2021-11-09 09:43:26,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538906697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:43:26,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:43:26,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:43:26,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683245204] [2021-11-09 09:43:26,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:43:26,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:43:26,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:43:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:43:26,780 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-11-09 09:43:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:43:26,961 INFO L93 Difference]: Finished difference Result 264 states and 404 transitions. [2021-11-09 09:43:26,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:43:26,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) Word has length 24 [2021-11-09 09:43:26,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:43:26,965 INFO L225 Difference]: With dead ends: 264 [2021-11-09 09:43:26,966 INFO L226 Difference]: Without dead ends: 218 [2021-11-09 09:43:26,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:43:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-09 09:43:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 92. [2021-11-09 09:43:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.4615384615384615) internal successors, (133), 91 states have internal predecessors, (133), 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) [2021-11-09 09:43:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 133 transitions. [2021-11-09 09:43:27,007 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 133 transitions. Word has length 24 [2021-11-09 09:43:27,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:43:27,008 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 133 transitions. [2021-11-09 09:43:27,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-11-09 09:43:27,009 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 133 transitions. [2021-11-09 09:43:27,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-09 09:43:27,012 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:43:27,012 INFO L513 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] [2021-11-09 09:43:27,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:43:27,014 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:43:27,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:43:27,016 INFO L85 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2021-11-09 09:43:27,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:43:27,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407705852] [2021-11-09 09:43:27,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:43:27,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:43:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:43:27,174 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:43:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:43:27,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:43:27,358 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 09:43:27,360 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:43:27,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:43:27,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:43:27,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:43:27,368 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-09 09:43:27,373 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:43:27,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:43:27 BoogieIcfgContainer [2021-11-09 09:43:27,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 09:43:27,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:43:27,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:43:27,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:43:27,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:43:25" (3/4) ... [2021-11-09 09:43:27,512 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-09 09:43:27,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:43:27,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:43:27,603 INFO L168 Benchmark]: Toolchain (without parser) took 4255.69 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 76.8 MB in the beginning and 66.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:27,604 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 94.5 MB in the end (delta: 78.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:43:27,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.45 ms. Allocated memory is still 117.4 MB. Free memory was 76.6 MB in the beginning and 84.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:27,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.52 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 82.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:27,606 INFO L168 Benchmark]: Boogie Preprocessor took 41.78 ms. Allocated memory is still 117.4 MB. Free memory was 82.2 MB in the beginning and 80.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:27,607 INFO L168 Benchmark]: RCFGBuilder took 1245.54 ms. Allocated memory is still 117.4 MB. Free memory was 80.4 MB in the beginning and 44.0 MB in the end (delta: 36.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:27,608 INFO L168 Benchmark]: TraceAbstraction took 2169.21 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 43.8 MB in the beginning and 77.4 MB in the end (delta: -33.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:43:27,609 INFO L168 Benchmark]: Witness Printer took 92.92 ms. Allocated memory is still 144.7 MB. Free memory was 77.4 MB in the beginning and 66.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:27,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 94.5 MB in the end (delta: 78.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 617.45 ms. Allocated memory is still 117.4 MB. Free memory was 76.6 MB in the beginning and 84.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.52 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 82.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.78 ms. Allocated memory is still 117.4 MB. Free memory was 82.2 MB in the beginning and 80.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1245.54 ms. Allocated memory is still 117.4 MB. Free memory was 80.4 MB in the beginning and 44.0 MB in the end (delta: 36.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2169.21 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 43.8 MB in the beginning and 77.4 MB in the end (delta: -33.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 92.92 ms. Allocated memory is still 144.7 MB. Free memory was 77.4 MB in the beginning and 66.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * 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: 900]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L316] int waterLevel = 1; [L317] int methaneLevelCritical = 0; [L603] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L800] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L873] int retValue_acc ; [L874] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L425] int retValue_acc ; [L428] retValue_acc = 1 [L429] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] tmp = valid_product() [L882] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L106] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] tmp = __VERIFIER_nondet_int() [L114] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L334] COND TRUE waterLevel < 2 [L335] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND TRUE \read(tmp___2) [L311] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L355] int retValue_acc ; [L358] retValue_acc = methaneLevelCritical [L359] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L387] int retValue_acc ; [L390] retValue_acc = waterLevel [L391] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L900] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 900]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 900]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 234 SDtfs, 386 SDslu, 197 SDs, 0 SdLazy, 44 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2021-11-09 09:43:27,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa744bc7-da90-4f53-a67b-36b3511b536e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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