./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.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_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/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_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/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_05bdce0c-5a03-430b-9d1a-1a6af46dec12/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 a80dbad4927e9382ff212f6acae971cadaba99bba92d1fbe50466813cfe135a1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:27:42,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:27:42,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:27:42,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:27:42,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:27:42,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:27:42,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:27:42,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:27:42,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:27:42,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:27:42,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:27:42,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:27:42,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:27:42,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:27:42,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:27:42,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:27:42,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:27:42,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:27:42,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:27:42,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:27:42,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:27:42,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:27:42,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:27:42,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:27:42,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:27:42,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:27:42,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:27:42,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:27:42,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:27:42,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:27:42,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:27:42,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:27:42,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:27:42,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:27:42,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:27:42,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:27:42,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:27:42,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:27:42,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:27:42,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:27:42,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:27:42,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:27:42,174 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:27:42,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:27:42,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:27:42,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:27:42,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:27:42,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:27:42,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:27:42,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:27:42,176 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:27:42,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:27:42,176 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:27:42,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:27:42,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:27:42,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:27:42,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:27:42,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:27:42,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:27:42,177 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:27:42,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:27:42,178 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:27:42,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:27:42,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:27:42,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:27:42,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:27:42,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:27:42,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:27:42,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:27:42,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:27:42,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:27:42,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:27:42,179 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:27:42,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:27:42,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:27:42,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:27:42,180 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_05bdce0c-5a03-430b-9d1a-1a6af46dec12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a80dbad4927e9382ff212f6acae971cadaba99bba92d1fbe50466813cfe135a1 [2021-12-06 22:27:42,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:27:42,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:27:42,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:27:42,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:27:42,391 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:27:42,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2021-12-06 22:27:42,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/data/c8ba09a89/ce657053fbbe477fa2b1a283ed985f75/FLAG62984aa31 [2021-12-06 22:27:42,886 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:27:42,887 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2021-12-06 22:27:42,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/data/c8ba09a89/ce657053fbbe477fa2b1a283ed985f75/FLAG62984aa31 [2021-12-06 22:27:42,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/data/c8ba09a89/ce657053fbbe477fa2b1a283ed985f75 [2021-12-06 22:27:42,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:27:42,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:27:42,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:27:42,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:27:42,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:27:42,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:27:42" (1/1) ... [2021-12-06 22:27:42,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11db3c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:42, skipping insertion in model container [2021-12-06 22:27:42,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:27:42" (1/1) ... [2021-12-06 22:27:42,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:27:42,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:27:43,117 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_05bdce0c-5a03-430b-9d1a-1a6af46dec12/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c[9205,9218] [2021-12-06 22:27:43,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:27:43,160 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:27:43,188 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_05bdce0c-5a03-430b-9d1a-1a6af46dec12/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c[9205,9218] [2021-12-06 22:27:43,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:27:43,223 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:27:43,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43 WrapperNode [2021-12-06 22:27:43,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:27:43,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:27:43,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:27:43,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:27:43,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,260 INFO L137 Inliner]: procedures = 58, calls = 163, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 285 [2021-12-06 22:27:43,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:27:43,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:27:43,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:27:43,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:27:43,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:27:43,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:27:43,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:27:43,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:27:43,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (1/1) ... [2021-12-06 22:27:43,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:27:43,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:43,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:27:43,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:27:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:27:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-06 22:27:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-06 22:27:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-06 22:27:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-06 22:27:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 22:27:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 22:27:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 22:27:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 22:27:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 22:27:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 22:27:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 22:27:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 22:27:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 22:27:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 22:27:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-06 22:27:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-06 22:27:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-06 22:27:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-06 22:27:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:27:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 22:27:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 22:27:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:27:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:27:43,396 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:27:43,398 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:27:43,631 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:27:43,637 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:27:43,637 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 22:27:43,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:27:43 BoogieIcfgContainer [2021-12-06 22:27:43,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:27:43,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:27:43,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:27:43,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:27:43,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:27:42" (1/3) ... [2021-12-06 22:27:43,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53990c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:27:43, skipping insertion in model container [2021-12-06 22:27:43,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:27:43" (2/3) ... [2021-12-06 22:27:43,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53990c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:27:43, skipping insertion in model container [2021-12-06 22:27:43,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:27:43" (3/3) ... [2021-12-06 22:27:43,644 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2021-12-06 22:27:43,648 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:27:43,648 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:27:43,684 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:27:43,689 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 [2021-12-06 22:27:43,689 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:27:43,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 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) [2021-12-06 22:27:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 22:27:43,711 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:27:43,712 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] [2021-12-06 22:27:43,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:27:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1265876681, now seen corresponding path program 1 times [2021-12-06 22:27:43,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:43,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39164896] [2021-12-06 22:27:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:43,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 22:27:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:43,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:43,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39164896] [2021-12-06 22:27:43,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39164896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:27:43,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:27:43,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:27:43,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197996596] [2021-12-06 22:27:43,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:27:43,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 22:27:43,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:43,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 22:27:43,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 22:27:43,940 INFO L87 Difference]: Start difference. First operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 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) [2021-12-06 22:27:43,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:43,974 INFO L93 Difference]: Finished difference Result 220 states and 299 transitions. [2021-12-06 22:27:43,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 22:27:43,976 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 [2021-12-06 22:27:43,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:27:43,983 INFO L225 Difference]: With dead ends: 220 [2021-12-06 22:27:43,983 INFO L226 Difference]: Without dead ends: 105 [2021-12-06 22:27:43,987 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 [2021-12-06 22:27:43,989 INFO L933 BasicCegarLoop]: 146 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, 146 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 [2021-12-06 22:27:43,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:27:44,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-12-06 22:27:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-12-06 22:27:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 86 states have internal predecessors, (100), 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) [2021-12-06 22:27:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 137 transitions. [2021-12-06 22:27:44,027 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 137 transitions. Word has length 25 [2021-12-06 22:27:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:27:44,027 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 137 transitions. [2021-12-06 22:27:44,028 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) [2021-12-06 22:27:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 137 transitions. [2021-12-06 22:27:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 22:27:44,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:27:44,030 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] [2021-12-06 22:27:44,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:27:44,031 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:27:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -541136910, now seen corresponding path program 1 times [2021-12-06 22:27:44,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:44,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698297263] [2021-12-06 22:27:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:44,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 22:27:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:44,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:44,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698297263] [2021-12-06 22:27:44,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698297263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:27:44,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:27:44,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:27:44,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563741428] [2021-12-06 22:27:44,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:27:44,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:27:44,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:44,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:27:44,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:27:44,090 INFO L87 Difference]: Start difference. First operand 105 states and 137 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) [2021-12-06 22:27:44,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:44,106 INFO L93 Difference]: Finished difference Result 172 states and 224 transitions. [2021-12-06 22:27:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:27:44,106 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 [2021-12-06 22:27:44,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:27:44,108 INFO L225 Difference]: With dead ends: 172 [2021-12-06 22:27:44,108 INFO L226 Difference]: Without dead ends: 96 [2021-12-06 22:27:44,109 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 [2021-12-06 22:27:44,110 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 16 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 227 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 [2021-12-06 22:27:44,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:27:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-12-06 22:27:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-12-06 22:27:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 80 states have internal predecessors, (93), 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) [2021-12-06 22:27:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-12-06 22:27:44,122 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 26 [2021-12-06 22:27:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:27:44,122 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-12-06 22:27:44,122 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) [2021-12-06 22:27:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-12-06 22:27:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 22:27:44,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:27:44,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:27:44,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:27:44,124 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:27:44,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:44,125 INFO L85 PathProgramCache]: Analyzing trace with hash 826404174, now seen corresponding path program 1 times [2021-12-06 22:27:44,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:44,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230115442] [2021-12-06 22:27:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:44,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:44,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 22:27:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:44,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:44,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230115442] [2021-12-06 22:27:44,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230115442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:27:44,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:27:44,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:27:44,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483695476] [2021-12-06 22:27:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:27:44,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:27:44,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:27:44,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:27:44,199 INFO L87 Difference]: Start difference. First operand 96 states and 125 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 22:27:44,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:44,354 INFO L93 Difference]: Finished difference Result 317 states and 419 transitions. [2021-12-06 22:27:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:27:44,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-06 22:27:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:27:44,358 INFO L225 Difference]: With dead ends: 317 [2021-12-06 22:27:44,358 INFO L226 Difference]: Without dead ends: 228 [2021-12-06 22:27:44,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 22:27:44,361 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 257 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 22:27:44,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 580 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 22:27:44,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-12-06 22:27:44,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2021-12-06 22:27:44,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 161 states have (on average 1.3540372670807452) internal successors, (218), 183 states have internal predecessors, (218), 37 states have call successors, (37), 23 states have call predecessors, (37), 23 states have return successors, (38), 25 states have call predecessors, (38), 37 states have call successors, (38) [2021-12-06 22:27:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 293 transitions. [2021-12-06 22:27:44,394 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 293 transitions. Word has length 30 [2021-12-06 22:27:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:27:44,394 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 293 transitions. [2021-12-06 22:27:44,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 22:27:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 293 transitions. [2021-12-06 22:27:44,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 22:27:44,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:27:44,397 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] [2021-12-06 22:27:44,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:27:44,397 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:27:44,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:44,397 INFO L85 PathProgramCache]: Analyzing trace with hash 856279620, now seen corresponding path program 1 times [2021-12-06 22:27:44,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:44,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83416541] [2021-12-06 22:27:44,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:44,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 22:27:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:27:44,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:44,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83416541] [2021-12-06 22:27:44,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83416541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:27:44,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:27:44,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:27:44,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143323842] [2021-12-06 22:27:44,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:27:44,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:27:44,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:44,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:27:44,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:27:44,470 INFO L87 Difference]: Start difference. First operand 222 states and 293 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) [2021-12-06 22:27:44,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:44,536 INFO L93 Difference]: Finished difference Result 644 states and 878 transitions. [2021-12-06 22:27:44,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:27:44,536 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 [2021-12-06 22:27:44,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:27:44,541 INFO L225 Difference]: With dead ends: 644 [2021-12-06 22:27:44,541 INFO L226 Difference]: Without dead ends: 429 [2021-12-06 22:27:44,543 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 [2021-12-06 22:27:44,545 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 94 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 518 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 [2021-12-06 22:27:44,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 518 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:27:44,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-12-06 22:27:44,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 420. [2021-12-06 22:27:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 302 states have (on average 1.3311258278145695) internal successors, (402), 342 states have internal predecessors, (402), 74 states have call successors, (74), 46 states have call predecessors, (74), 43 states have return successors, (80), 47 states have call predecessors, (80), 74 states have call successors, (80) [2021-12-06 22:27:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 556 transitions. [2021-12-06 22:27:44,593 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 556 transitions. Word has length 34 [2021-12-06 22:27:44,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:27:44,594 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 556 transitions. [2021-12-06 22:27:44,594 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) [2021-12-06 22:27:44,594 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 556 transitions. [2021-12-06 22:27:44,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 22:27:44,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:27:44,599 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] [2021-12-06 22:27:44,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:27:44,599 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:27:44,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1555178858, now seen corresponding path program 1 times [2021-12-06 22:27:44,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:44,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652233189] [2021-12-06 22:27:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:44,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:44,623 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:27:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:27:44,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:27:44,661 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:27:44,661 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 22:27:44,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:27:44,665 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-06 22:27:44,668 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:27:44,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:27:44 BoogieIcfgContainer [2021-12-06 22:27:44,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:27:44,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:27:44,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:27:44,702 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:27:44,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:27:43" (3/4) ... [2021-12-06 22:27:44,703 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 22:27:44,748 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 22:27:44,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:27:44,749 INFO L158 Benchmark]: Toolchain (without parser) took 1836.45ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 38.9MB in the end (delta: 27.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-12-06 22:27:44,749 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:27:44,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.65ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 71.0MB in the end (delta: -4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 22:27:44,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.04ms. Allocated memory is still 102.8MB. Free memory was 71.0MB in the beginning and 68.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 22:27:44,750 INFO L158 Benchmark]: Boogie Preprocessor took 21.66ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 66.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:27:44,750 INFO L158 Benchmark]: RCFGBuilder took 355.36ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 48.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-06 22:27:44,750 INFO L158 Benchmark]: TraceAbstraction took 1061.45ms. Allocated memory is still 102.8MB. Free memory was 48.4MB in the beginning and 43.1MB in the end (delta: 5.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-06 22:27:44,751 INFO L158 Benchmark]: Witness Printer took 46.66ms. Allocated memory is still 102.8MB. Free memory was 43.1MB in the beginning and 38.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 22:27:44,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.65ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 71.0MB in the end (delta: -4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.04ms. Allocated memory is still 102.8MB. Free memory was 71.0MB in the beginning and 68.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.66ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 66.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.36ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 48.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1061.45ms. Allocated memory is still 102.8MB. Free memory was 48.4MB in the beginning and 43.1MB in the end (delta: 5.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 46.66ms. Allocated memory is still 102.8MB. Free memory was 43.1MB in the beginning and 38.9MB 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: 629]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L198] int pumpRunning = 0; [L199] int systemActive = 1; [L522] int waterLevel = 1; [L523] int methaneLevelCritical = 0; [L837] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L455] int splverifierCounter ; [L456] int tmp ; [L457] int tmp___0 ; [L458] int tmp___1 ; [L459] int tmp___2 ; [L462] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L464] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L466] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L472] tmp = __VERIFIER_nondet_int() [L474] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L476] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE waterLevel < 2 [L541] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L476] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L482] tmp___0 = __VERIFIER_nondet_int() [L484] 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] [L492] tmp___2 = __VERIFIER_nondet_int() [L494] COND FALSE !(\read(tmp___2)) [L498] tmp___1 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___1) [L502] CALL stopSystem() [L442] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L502] RET stopSystem() [L509] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L206] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L213] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] CALL __utac_acc__Specification3_spec__1() [L635] int tmp ; [L636] int tmp___0 ; [L637] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L561] int retValue_acc ; [L564] retValue_acc = methaneLevelCritical [L565] 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] [L641] 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] [L641] tmp = isMethaneLevelCritical() [L643] COND FALSE !(\read(tmp)) [L647] CALL, EXPR getWaterLevel() [L593] int retValue_acc ; [L596] retValue_acc = waterLevel [L597] 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] [L647] RET, EXPR getWaterLevel() [L647] tmp___0 = getWaterLevel() [L649] COND TRUE tmp___0 == 2 [L651] CALL, EXPR isPumpRunning() [L356] int retValue_acc ; [L359] retValue_acc = pumpRunning [L360] 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] [L651] RET, EXPR isPumpRunning() [L651] tmp___1 = isPumpRunning() [L653] COND FALSE !(\read(tmp___1)) [L657] CALL __automaton_fail() [L629] 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, 114 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, 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, 371 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 367 mSDsluCounter, 1471 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 910 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 561 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 215 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! [2021-12-06 22:27:44,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05bdce0c-5a03-430b-9d1a-1a6af46dec12/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