./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.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_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/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 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2020-11-28 03:16:54,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:16:54,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:16:54,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:16:54,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:16:54,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:16:54,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:16:54,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:16:54,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:16:54,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:16:54,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:16:54,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:16:54,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:16:54,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:16:54,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:16:54,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:16:54,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:16:54,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:16:54,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:16:54,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:16:54,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:16:54,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:16:54,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:16:54,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:16:54,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:16:54,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:16:54,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:16:54,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:16:54,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:16:54,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:16:54,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:16:54,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:16:54,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:16:54,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:16:54,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:16:54,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:16:54,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:16:54,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:16:54,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:16:54,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:16:54,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:16:54,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:16:54,699 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:16:54,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:16:54,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:16:54,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:16:54,705 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:16:54,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:16:54,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:16:54,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:16:54,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:16:54,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:16:54,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:16:54,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:16:54,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:16:54,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:16:54,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:16:54,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:16:54,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:16:54,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:16:54,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:16:54,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:16:54,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:16:54,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:16:54,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:16:54,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:16:54,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:16:54,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:16:54,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:16:54,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:16:54,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:16:54,711 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_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc [2020-11-28 03:16:55,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:16:55,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:16:55,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:16:55,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:16:55,101 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:16:55,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-28 03:16:55,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/data/faf2c60a4/e31565e9e3164eb9b5a6a3a4b652ed07/FLAG160ebe1d5 [2020-11-28 03:16:55,879 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:16:55,884 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-28 03:16:55,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/data/faf2c60a4/e31565e9e3164eb9b5a6a3a4b652ed07/FLAG160ebe1d5 [2020-11-28 03:16:56,134 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/data/faf2c60a4/e31565e9e3164eb9b5a6a3a4b652ed07 [2020-11-28 03:16:56,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:16:56,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:16:56,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:56,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:16:56,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:16:56,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bdff354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56, skipping insertion in model container [2020-11-28 03:16:56,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:16:56,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:16:56,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:56,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:16:56,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:56,728 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:16:56,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56 WrapperNode [2020-11-28 03:16:56,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:56,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:56,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:16:56,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:16:56,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:56,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:16:56,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:16:56,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:16:56,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... [2020-11-28 03:16:56,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:16:56,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:16:56,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:16:56,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:16:56,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/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 [2020-11-28 03:16:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:16:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:16:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:16:56,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:16:58,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:16:58,226 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-28 03:16:58,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:58 BoogieIcfgContainer [2020-11-28 03:16:58,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:16:58,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:16:58,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:16:58,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:16:58,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:16:56" (1/3) ... [2020-11-28 03:16:58,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112832d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:58, skipping insertion in model container [2020-11-28 03:16:58,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:56" (2/3) ... [2020-11-28 03:16:58,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112832d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:58, skipping insertion in model container [2020-11-28 03:16:58,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:58" (3/3) ... [2020-11-28 03:16:58,240 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-11-28 03:16:58,251 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:16:58,255 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:16:58,267 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:16:58,307 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:16:58,307 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:16:58,308 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:16:58,308 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:16:58,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:16:58,309 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:16:58,309 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:16:58,309 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:16:58,331 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-28 03:16:58,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:16:58,337 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:58,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:58,338 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1335483370, now seen corresponding path program 1 times [2020-11-28 03:16:58,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:58,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68597485] [2020-11-28 03:16:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:58,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68597485] [2020-11-28 03:16:58,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:58,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:16:58,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614698873] [2020-11-28 03:16:58,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:16:58,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:58,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:16:58,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:16:58,739 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-28 03:16:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:58,796 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-28 03:16:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:16:58,798 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:16:58,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:58,821 INFO L225 Difference]: With dead ends: 223 [2020-11-28 03:16:58,821 INFO L226 Difference]: Without dead ends: 109 [2020-11-28 03:16:58,825 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 [2020-11-28 03:16:58,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-28 03:16:58,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-28 03:16:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-28 03:16:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-28 03:16:58,893 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-28 03:16:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:58,893 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-28 03:16:58,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:16:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-28 03:16:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:16:58,898 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:58,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:58,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:16:58,900 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:58,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:58,903 INFO L82 PathProgramCache]: Analyzing trace with hash 2048453173, now seen corresponding path program 1 times [2020-11-28 03:16:58,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:58,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288132492] [2020-11-28 03:16:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:59,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288132492] [2020-11-28 03:16:59,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:59,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:16:59,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131447866] [2020-11-28 03:16:59,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:16:59,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:59,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:16:59,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:16:59,071 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-11-28 03:16:59,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:59,085 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-28 03:16:59,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:16:59,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:16:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:59,089 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:16:59,089 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:16:59,090 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 [2020-11-28 03:16:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:16:59,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 03:16:59,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 03:16:59,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-28 03:16:59,099 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-28 03:16:59,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:59,099 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-28 03:16:59,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:16:59,116 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-28 03:16:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:16:59,117 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:59,118 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] [2020-11-28 03:16:59,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:16:59,119 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:59,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2020-11-28 03:16:59,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:59,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774465684] [2020-11-28 03:16:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:59,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774465684] [2020-11-28 03:16:59,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:59,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:16:59,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649783977] [2020-11-28 03:16:59,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:16:59,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:59,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:16:59,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:16:59,253 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-28 03:16:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:59,286 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2020-11-28 03:16:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:16:59,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:16:59,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:59,288 INFO L225 Difference]: With dead ends: 129 [2020-11-28 03:16:59,290 INFO L226 Difference]: Without dead ends: 88 [2020-11-28 03:16:59,292 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 [2020-11-28 03:16:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-28 03:16:59,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-11-28 03:16:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-28 03:16:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2020-11-28 03:16:59,315 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 24 [2020-11-28 03:16:59,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:59,316 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2020-11-28 03:16:59,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:16:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2020-11-28 03:16:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:16:59,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:59,320 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] [2020-11-28 03:16:59,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:16:59,321 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:59,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:59,321 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2020-11-28 03:16:59,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:59,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093857691] [2020-11-28 03:16:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:59,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093857691] [2020-11-28 03:16:59,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:59,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:16:59,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139858634] [2020-11-28 03:16:59,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:16:59,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:59,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:16:59,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:16:59,424 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand 5 states. [2020-11-28 03:16:59,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:59,580 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2020-11-28 03:16:59,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:16:59,581 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-28 03:16:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:59,585 INFO L225 Difference]: With dead ends: 488 [2020-11-28 03:16:59,585 INFO L226 Difference]: Without dead ends: 410 [2020-11-28 03:16:59,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:16:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-11-28 03:16:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2020-11-28 03:16:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-11-28 03:16:59,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 227 transitions. [2020-11-28 03:16:59,614 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 227 transitions. Word has length 26 [2020-11-28 03:16:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:59,615 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 227 transitions. [2020-11-28 03:16:59,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:16:59,615 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 227 transitions. [2020-11-28 03:16:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:16:59,621 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:59,621 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] [2020-11-28 03:16:59,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:16:59,622 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:59,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:59,622 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2020-11-28 03:16:59,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:59,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939645344] [2020-11-28 03:16:59,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:16:59,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:16:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:16:59,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:16:59,867 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:16:59,867 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:16:59,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:17:00,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:17:00 BoogieIcfgContainer [2020-11-28 03:17:00,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:17:00,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:17:00,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:17:00,035 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:17:00,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:58" (3/4) ... [2020-11-28 03:17:00,045 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:17:00,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7067ca65-3a81-4f99-bbb2-4f0993cfcddc/bin/uautomizer/witness.graphml [2020-11-28 03:17:00,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:17:00,178 INFO L168 Benchmark]: Toolchain (without parser) took 4038.00 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 56.0 MB in the beginning and 40.6 MB in the end (delta: 15.5 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:00,181 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:00,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.21 ms. Allocated memory is still 86.0 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:00,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.79 ms. Allocated memory is still 86.0 MB. Free memory was 53.7 MB in the beginning and 49.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:00,183 INFO L168 Benchmark]: Boogie Preprocessor took 44.35 ms. Allocated memory is still 86.0 MB. Free memory was 49.9 MB in the beginning and 47.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:00,183 INFO L168 Benchmark]: RCFGBuilder took 1388.79 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.4 MB in the beginning and 74.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:00,184 INFO L168 Benchmark]: TraceAbstraction took 1802.58 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 51.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:00,184 INFO L168 Benchmark]: Witness Printer took 140.86 ms. Allocated memory is still 104.9 MB. Free memory was 51.5 MB in the beginning and 40.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:00,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 590.21 ms. Allocated memory is still 86.0 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.79 ms. Allocated memory is still 86.0 MB. Free memory was 53.7 MB in the beginning and 49.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.35 ms. Allocated memory is still 86.0 MB. Free memory was 49.9 MB in the beginning and 47.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1388.79 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.4 MB in the beginning and 74.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1802.58 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 51.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 140.86 ms. Allocated memory is still 104.9 MB. Free memory was 51.5 MB in the beginning and 40.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 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; [L179] int pumpRunning = 0; [L180] int systemActive = 1; [L440] int cleanupTimeShifts = 4; [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int retValue_acc ; [L517] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] int splverifierCounter ; [L375] int tmp ; [L376] int tmp___0 ; [L377] int tmp___1 ; [L378] int tmp___2 ; [L381] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L383] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L385] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L391] tmp = __VERIFIER_nondet_int() [L393] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L401] tmp___0 = __VERIFIER_nondet_int() [L403] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] tmp___2 = __VERIFIER_nondet_int() [L413] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L193] COND TRUE \read(systemActive) [L241] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L244] COND FALSE !(\read(pumpRunning)) [L215] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L218] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L141] int tmp ; [L142] int tmp___0 ; [L143] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] tmp = isMethaneLevelCritical() [L149] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L153] tmp___0 = getWaterLevel() [L155] COND TRUE tmp___0 == 2 [L293] int retValue_acc ; [L296] retValue_acc = pumpRunning [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] tmp___1 = isPumpRunning() [L159] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product23.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 433 SDslu, 331 SDs, 0 SdLazy, 53 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...