./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer --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 a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:44:25,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:44:25,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:44:25,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:44:25,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:44:25,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:44:25,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:44:25,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:44:25,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:44:25,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:44:25,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:44:25,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:44:25,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:44:25,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:44:25,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:44:25,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:44:25,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:44:25,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:44:25,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:44:25,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:44:25,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:44:25,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:44:25,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:44:25,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:44:25,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:44:25,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:44:25,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:44:25,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:44:25,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:44:25,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:44:25,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:44:25,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:44:25,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:44:25,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:44:25,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:44:25,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:44:25,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:44:25,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:44:25,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:44:25,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:44:25,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:44:25,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:44:25,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:44:25,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:44:25,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:44:25,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:44:25,800 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:44:25,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:44:25,801 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:44:25,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:44:25,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:44:25,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:44:25,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:44:25,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:44:25,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:44:25,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:44:25,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:44:25,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:44:25,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:44:25,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:44:25,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:44:25,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:44:25,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:44:25,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:44:25,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:44:25,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:44:25,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:44:25,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:44:25,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:44:25,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:44:25,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:44:25,807 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-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 [2020-11-29 18:44:26,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:44:26,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:44:26,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:44:26,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:44:26,095 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:44:26,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-11-29 18:44:26,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/data/724384792/b58c701317e44fa78e49b91312127762/FLAG0ea90d97e [2020-11-29 18:44:26,714 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:44:26,715 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-11-29 18:44:26,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/data/724384792/b58c701317e44fa78e49b91312127762/FLAG0ea90d97e [2020-11-29 18:44:26,976 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/data/724384792/b58c701317e44fa78e49b91312127762 [2020-11-29 18:44:26,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:44:26,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:44:26,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:44:26,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:44:26,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:44:26,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:44:26" (1/1) ... [2020-11-29 18:44:26,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33764639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:26, skipping insertion in model container [2020-11-29 18:44:26,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:44:26" (1/1) ... [2020-11-29 18:44:27,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:44:27,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:44:27,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:44:27,446 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:44:27,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:44:27,630 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:44:27,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27 WrapperNode [2020-11-29 18:44:27,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:44:27,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:44:27,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:44:27,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:44:27,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:44:27,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:44:27,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:44:27,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:44:27,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... [2020-11-29 18:44:27,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:44:27,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:44:27,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:44:27,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:44:27,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:44:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:44:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:44:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:44:27,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:44:29,255 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:44:29,256 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-29 18:44:29,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:44:29 BoogieIcfgContainer [2020-11-29 18:44:29,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:44:29,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:44:29,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:44:29,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:44:29,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:44:26" (1/3) ... [2020-11-29 18:44:29,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2136f077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:44:29, skipping insertion in model container [2020-11-29 18:44:29,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:44:27" (2/3) ... [2020-11-29 18:44:29,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2136f077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:44:29, skipping insertion in model container [2020-11-29 18:44:29,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:44:29" (3/3) ... [2020-11-29 18:44:29,268 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2020-11-29 18:44:29,279 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:44:29,285 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 18:44:29,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 18:44:29,323 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:44:29,324 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:44:29,324 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:44:29,324 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:44:29,324 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:44:29,325 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:44:29,325 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:44:29,325 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:44:29,346 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-11-29 18:44:29,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:44:29,353 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:29,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:44:29,355 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:29,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:29,362 INFO L82 PathProgramCache]: Analyzing trace with hash -77049212, now seen corresponding path program 1 times [2020-11-29 18:44:29,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:29,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823346566] [2020-11-29 18:44:29,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:29,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823346566] [2020-11-29 18:44:29,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:29,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:44:29,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568434236] [2020-11-29 18:44:29,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:44:29,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:29,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:44:29,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:44:29,773 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2020-11-29 18:44:29,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:29,839 INFO L93 Difference]: Finished difference Result 182 states and 273 transitions. [2020-11-29 18:44:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:44:29,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 18:44:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:29,866 INFO L225 Difference]: With dead ends: 182 [2020-11-29 18:44:29,869 INFO L226 Difference]: Without dead ends: 89 [2020-11-29 18:44:29,873 INFO L677 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 [2020-11-29 18:44:29,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-29 18:44:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-29 18:44:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-29 18:44:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2020-11-29 18:44:29,944 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2020-11-29 18:44:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:29,945 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2020-11-29 18:44:29,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:44:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-11-29 18:44:29,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 18:44:29,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:29,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:44:29,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:44:29,950 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:29,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:29,953 INFO L82 PathProgramCache]: Analyzing trace with hash -295885181, now seen corresponding path program 1 times [2020-11-29 18:44:29,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:29,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646168138] [2020-11-29 18:44:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:30,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646168138] [2020-11-29 18:44:30,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:30,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:44:30,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434784646] [2020-11-29 18:44:30,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:44:30,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:30,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:44:30,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:30,107 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2020-11-29 18:44:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:30,138 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-11-29 18:44:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:44:30,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 18:44:30,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:30,141 INFO L225 Difference]: With dead ends: 89 [2020-11-29 18:44:30,142 INFO L226 Difference]: Without dead ends: 41 [2020-11-29 18:44:30,144 INFO L677 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 [2020-11-29 18:44:30,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-29 18:44:30,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-29 18:44:30,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 18:44:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-11-29 18:44:30,160 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-11-29 18:44:30,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:30,161 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-11-29 18:44:30,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:44:30,162 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-11-29 18:44:30,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:44:30,163 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:30,163 INFO L422 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] [2020-11-29 18:44:30,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:44:30,165 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:30,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:30,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1417220031, now seen corresponding path program 1 times [2020-11-29 18:44:30,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:30,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040556795] [2020-11-29 18:44:30,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:30,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040556795] [2020-11-29 18:44:30,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:30,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:44:30,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314479769] [2020-11-29 18:44:30,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:44:30,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:30,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:44:30,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:30,346 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 3 states. [2020-11-29 18:44:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:30,365 INFO L93 Difference]: Finished difference Result 109 states and 160 transitions. [2020-11-29 18:44:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:44:30,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 18:44:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:30,368 INFO L225 Difference]: With dead ends: 109 [2020-11-29 18:44:30,368 INFO L226 Difference]: Without dead ends: 75 [2020-11-29 18:44:30,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-29 18:44:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-11-29 18:44:30,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 18:44:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2020-11-29 18:44:30,380 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 24 [2020-11-29 18:44:30,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:30,381 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2020-11-29 18:44:30,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:44:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-11-29 18:44:30,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 18:44:30,382 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:30,383 INFO L422 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] [2020-11-29 18:44:30,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:44:30,383 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash -462384263, now seen corresponding path program 1 times [2020-11-29 18:44:30,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:30,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643688009] [2020-11-29 18:44:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:30,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:30,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643688009] [2020-11-29 18:44:30,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:30,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:44:30,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161000918] [2020-11-29 18:44:30,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:44:30,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:30,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:44:30,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:30,474 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2020-11-29 18:44:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:30,525 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2020-11-29 18:44:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:44:30,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 18:44:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:30,527 INFO L225 Difference]: With dead ends: 178 [2020-11-29 18:44:30,527 INFO L226 Difference]: Without dead ends: 114 [2020-11-29 18:44:30,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:30,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-29 18:44:30,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2020-11-29 18:44:30,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-29 18:44:30,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 164 transitions. [2020-11-29 18:44:30,542 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 164 transitions. Word has length 25 [2020-11-29 18:44:30,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:30,542 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 164 transitions. [2020-11-29 18:44:30,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:44:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 164 transitions. [2020-11-29 18:44:30,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 18:44:30,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:30,544 INFO L422 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] [2020-11-29 18:44:30,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:44:30,545 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:30,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1738728008, now seen corresponding path program 1 times [2020-11-29 18:44:30,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:30,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642658419] [2020-11-29 18:44:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:30,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642658419] [2020-11-29 18:44:30,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:30,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:44:30,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762196088] [2020-11-29 18:44:30,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:44:30,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:30,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:44:30,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:44:30,678 INFO L87 Difference]: Start difference. First operand 112 states and 164 transitions. Second operand 5 states. [2020-11-29 18:44:30,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:30,840 INFO L93 Difference]: Finished difference Result 544 states and 809 transitions. [2020-11-29 18:44:30,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:44:30,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-29 18:44:30,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:30,845 INFO L225 Difference]: With dead ends: 544 [2020-11-29 18:44:30,846 INFO L226 Difference]: Without dead ends: 439 [2020-11-29 18:44:30,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:44:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-11-29 18:44:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 203. [2020-11-29 18:44:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-11-29 18:44:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2020-11-29 18:44:30,893 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 27 [2020-11-29 18:44:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:30,894 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2020-11-29 18:44:30,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:44:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2020-11-29 18:44:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 18:44:30,896 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:30,896 INFO L422 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] [2020-11-29 18:44:30,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:44:30,897 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:30,898 INFO L82 PathProgramCache]: Analyzing trace with hash 304582848, now seen corresponding path program 1 times [2020-11-29 18:44:30,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:30,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480376487] [2020-11-29 18:44:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:31,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480376487] [2020-11-29 18:44:31,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:31,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:44:31,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729261075] [2020-11-29 18:44:31,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:44:31,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:31,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:44:31,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:44:31,017 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand 5 states. [2020-11-29 18:44:31,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:31,188 INFO L93 Difference]: Finished difference Result 769 states and 1111 transitions. [2020-11-29 18:44:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:44:31,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-29 18:44:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:31,193 INFO L225 Difference]: With dead ends: 769 [2020-11-29 18:44:31,194 INFO L226 Difference]: Without dead ends: 573 [2020-11-29 18:44:31,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:44:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-11-29 18:44:31,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 201. [2020-11-29 18:44:31,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-29 18:44:31,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 286 transitions. [2020-11-29 18:44:31,249 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 286 transitions. Word has length 28 [2020-11-29 18:44:31,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:31,254 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 286 transitions. [2020-11-29 18:44:31,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:44:31,254 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2020-11-29 18:44:31,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 18:44:31,257 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:31,257 INFO L422 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] [2020-11-29 18:44:31,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:44:31,258 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1643402821, now seen corresponding path program 1 times [2020-11-29 18:44:31,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:31,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597976288] [2020-11-29 18:44:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:31,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597976288] [2020-11-29 18:44:31,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:31,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:44:31,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750869106] [2020-11-29 18:44:31,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:44:31,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:31,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:44:31,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:44:31,325 INFO L87 Difference]: Start difference. First operand 201 states and 286 transitions. Second operand 5 states. [2020-11-29 18:44:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:31,410 INFO L93 Difference]: Finished difference Result 555 states and 781 transitions. [2020-11-29 18:44:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:44:31,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-29 18:44:31,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:31,416 INFO L225 Difference]: With dead ends: 555 [2020-11-29 18:44:31,416 INFO L226 Difference]: Without dead ends: 361 [2020-11-29 18:44:31,418 INFO L677 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 [2020-11-29 18:44:31,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-11-29 18:44:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 213. [2020-11-29 18:44:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-11-29 18:44:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 298 transitions. [2020-11-29 18:44:31,452 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 298 transitions. Word has length 35 [2020-11-29 18:44:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:31,453 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 298 transitions. [2020-11-29 18:44:31,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:44:31,453 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 298 transitions. [2020-11-29 18:44:31,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 18:44:31,460 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:31,460 INFO L422 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] [2020-11-29 18:44:31,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:44:31,461 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:31,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:31,461 INFO L82 PathProgramCache]: Analyzing trace with hash 632285571, now seen corresponding path program 1 times [2020-11-29 18:44:31,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:31,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839485449] [2020-11-29 18:44:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:31,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839485449] [2020-11-29 18:44:31,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:31,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:44:31,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207976898] [2020-11-29 18:44:31,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:44:31,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:31,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:44:31,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:44:31,551 INFO L87 Difference]: Start difference. First operand 213 states and 298 transitions. Second operand 4 states. [2020-11-29 18:44:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:31,607 INFO L93 Difference]: Finished difference Result 515 states and 715 transitions. [2020-11-29 18:44:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:44:31,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-11-29 18:44:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:31,610 INFO L225 Difference]: With dead ends: 515 [2020-11-29 18:44:31,610 INFO L226 Difference]: Without dead ends: 309 [2020-11-29 18:44:31,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:44:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-11-29 18:44:31,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 221. [2020-11-29 18:44:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-11-29 18:44:31,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 306 transitions. [2020-11-29 18:44:31,638 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 306 transitions. Word has length 35 [2020-11-29 18:44:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:31,639 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 306 transitions. [2020-11-29 18:44:31,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:44:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 306 transitions. [2020-11-29 18:44:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 18:44:31,643 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:31,643 INFO L422 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] [2020-11-29 18:44:31,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 18:44:31,644 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:31,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:31,645 INFO L82 PathProgramCache]: Analyzing trace with hash -388782783, now seen corresponding path program 1 times [2020-11-29 18:44:31,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:31,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901464488] [2020-11-29 18:44:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:31,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901464488] [2020-11-29 18:44:31,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:31,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:44:31,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073082818] [2020-11-29 18:44:31,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:44:31,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:31,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:44:31,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:31,716 INFO L87 Difference]: Start difference. First operand 221 states and 306 transitions. Second operand 3 states. [2020-11-29 18:44:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:31,769 INFO L93 Difference]: Finished difference Result 535 states and 735 transitions. [2020-11-29 18:44:31,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:44:31,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-11-29 18:44:31,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:31,772 INFO L225 Difference]: With dead ends: 535 [2020-11-29 18:44:31,773 INFO L226 Difference]: Without dead ends: 321 [2020-11-29 18:44:31,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:31,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-29 18:44:31,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-11-29 18:44:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-29 18:44:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 428 transitions. [2020-11-29 18:44:31,818 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 428 transitions. Word has length 35 [2020-11-29 18:44:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:31,819 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 428 transitions. [2020-11-29 18:44:31,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:44:31,819 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 428 transitions. [2020-11-29 18:44:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-29 18:44:31,821 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:31,822 INFO L422 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] [2020-11-29 18:44:31,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 18:44:31,822 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:31,823 INFO L82 PathProgramCache]: Analyzing trace with hash -713441279, now seen corresponding path program 1 times [2020-11-29 18:44:31,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:31,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849219348] [2020-11-29 18:44:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:31,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849219348] [2020-11-29 18:44:31,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:31,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 18:44:31,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157394509] [2020-11-29 18:44:31,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 18:44:31,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:31,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:44:31,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:44:31,993 INFO L87 Difference]: Start difference. First operand 321 states and 428 transitions. Second operand 8 states. [2020-11-29 18:44:32,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:32,904 INFO L93 Difference]: Finished difference Result 1231 states and 1624 transitions. [2020-11-29 18:44:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-29 18:44:32,908 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-11-29 18:44:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:32,914 INFO L225 Difference]: With dead ends: 1231 [2020-11-29 18:44:32,914 INFO L226 Difference]: Without dead ends: 917 [2020-11-29 18:44:32,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2020-11-29 18:44:32,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-11-29 18:44:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 321. [2020-11-29 18:44:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-29 18:44:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 420 transitions. [2020-11-29 18:44:32,961 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 420 transitions. Word has length 36 [2020-11-29 18:44:32,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:32,961 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 420 transitions. [2020-11-29 18:44:32,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 18:44:32,962 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 420 transitions. [2020-11-29 18:44:32,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 18:44:32,963 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:32,963 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:44:32,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 18:44:32,963 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:32,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:32,964 INFO L82 PathProgramCache]: Analyzing trace with hash -415358832, now seen corresponding path program 1 times [2020-11-29 18:44:32,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:32,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327001316] [2020-11-29 18:44:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:33,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:33,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327001316] [2020-11-29 18:44:33,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:44:33,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:44:33,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940422389] [2020-11-29 18:44:33,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:44:33,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:44:33,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:44:33,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:44:33,029 INFO L87 Difference]: Start difference. First operand 321 states and 420 transitions. Second operand 3 states. [2020-11-29 18:44:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:44:33,120 INFO L93 Difference]: Finished difference Result 471 states and 623 transitions. [2020-11-29 18:44:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:44:33,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-29 18:44:33,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:44:33,125 INFO L225 Difference]: With dead ends: 471 [2020-11-29 18:44:33,125 INFO L226 Difference]: Without dead ends: 469 [2020-11-29 18:44:33,137 INFO L677 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 [2020-11-29 18:44:33,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-11-29 18:44:33,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 361. [2020-11-29 18:44:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-11-29 18:44:33,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2020-11-29 18:44:33,178 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 481 transitions. Word has length 51 [2020-11-29 18:44:33,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:44:33,179 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 481 transitions. [2020-11-29 18:44:33,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:44:33,179 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 481 transitions. [2020-11-29 18:44:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-29 18:44:33,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:44:33,181 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:44:33,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 18:44:33,182 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:44:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:33,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1528713513, now seen corresponding path program 1 times [2020-11-29 18:44:33,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:33,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786077314] [2020-11-29 18:44:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:33,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:33,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:33,480 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:44:33,480 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:44:33,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 18:44:33,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:44:33 BoogieIcfgContainer [2020-11-29 18:44:33,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:44:33,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:44:33,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:44:33,705 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:44:33,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:44:29" (3/4) ... [2020-11-29 18:44:33,707 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:44:33,934 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db3cc80e-adb3-4ec7-a178-f1346a6942cf/bin/uautomizer/witness.graphml [2020-11-29 18:44:33,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:44:33,936 INFO L168 Benchmark]: Toolchain (without parser) took 6955.62 ms. Allocated memory was 88.1 MB in the beginning and 169.9 MB in the end (delta: 81.8 MB). Free memory was 57.2 MB in the beginning and 130.0 MB in the end (delta: -72.8 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:44:33,937 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:44:33,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.09 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 56.9 MB in the beginning and 82.0 MB in the end (delta: -25.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:44:33,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.53 ms. Allocated memory is still 115.3 MB. Free memory was 82.0 MB in the beginning and 78.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:44:33,938 INFO L168 Benchmark]: Boogie Preprocessor took 74.72 ms. Allocated memory is still 115.3 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:44:33,939 INFO L168 Benchmark]: RCFGBuilder took 1424.45 ms. Allocated memory is still 115.3 MB. Free memory was 76.4 MB in the beginning and 79.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:44:33,939 INFO L168 Benchmark]: TraceAbstraction took 4443.87 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 79.4 MB in the beginning and 53.2 MB in the end (delta: 26.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:44:33,940 INFO L168 Benchmark]: Witness Printer took 230.01 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 53.2 MB in the beginning and 130.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:44:33,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 648.09 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 56.9 MB in the beginning and 82.0 MB in the end (delta: -25.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.53 ms. Allocated memory is still 115.3 MB. Free memory was 82.0 MB in the beginning and 78.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.72 ms. Allocated memory is still 115.3 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1424.45 ms. Allocated memory is still 115.3 MB. Free memory was 76.4 MB in the beginning and 79.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4443.87 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 79.4 MB in the beginning and 53.2 MB in the end (delta: 26.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 16.1 GB. * Witness Printer took 230.01 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 53.2 MB in the beginning and 130.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L509] int cleanupTimeShifts = 4; [L650] int methAndRunningLastTime ; [L759] int pumpRunning = 0; [L760] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int retValue_acc ; [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] tmp = valid_product() [L599] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] int splverifierCounter ; [L692] int tmp ; [L693] int tmp___0 ; [L694] int tmp___1 ; [L695] int tmp___2 ; [L698] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] tmp = __VERIFIER_nondet_int() [L710] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] COND TRUE ! pumpRunning [L910] int retValue_acc ; [L911] int tmp ; [L912] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L916] tmp = isHighWaterSensorDry() [L918] COND FALSE !(\read(tmp)) [L921] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L923] retValue_acc = tmp___0 [L924] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L800] tmp = isHighWaterLevel() [L802] COND TRUE \read(tmp) [L829] int tmp ; [L854] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L858] retValue_acc = isMethaneLevelCritical() [L860] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L833] tmp = isMethaneAlarm() [L835] COND FALSE !(\read(tmp)) [L823] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L683] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L766] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L798] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L665] tmp = isMethaneLevelCritical() [L667] COND TRUE \read(tmp) [L865] int retValue_acc ; [L868] retValue_acc = pumpRunning [L869] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L669] tmp___0 = isPumpRunning() [L671] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] COND FALSE !(\read(methAndRunningLastTime)) [L677] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L700] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L702] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L773] COND TRUE \read(systemActive) [L795] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L798] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L665] tmp = isMethaneLevelCritical() [L667] COND TRUE \read(tmp) [L865] int retValue_acc ; [L868] retValue_acc = pumpRunning [L869] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L669] tmp___0 = isPumpRunning() [L671] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L672] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product43.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 980 SDtfs, 1218 SDslu, 2166 SDs, 0 SdLazy, 315 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1554 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 20276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 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! Received shutdown request...