./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:52:38,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:38,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:38,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:38,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:38,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:38,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:38,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:38,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:38,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:38,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:38,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:38,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:38,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:38,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:38,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:38,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:38,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:38,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:38,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:38,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:38,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:38,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:38,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:38,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:38,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:38,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:38,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:38,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:38,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:38,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:38,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:38,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:38,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:38,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:38,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:38,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:38,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:38,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:38,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:38,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:38,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:38,143 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:38,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:38,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:38,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:38,158 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:38,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:38,158 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:38,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:38,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:38,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:38,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:38,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:38,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:38,159 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:38,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:38,159 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:38,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:38,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:38,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:38,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:38,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:38,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:38,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:38,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:38,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:38,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:38,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:38,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:38,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a419ccdf-2690-4702-9c6e-fd88f7377c72/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(__VERIFIER_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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2019-11-25 08:52:38,317 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:38,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:38,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:38,336 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:38,336 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:38,336 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-25 08:52:38,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/data/f667c81a9/c40afd9a56814a458625794e45359dc3/FLAG29ec8df3c [2019-11-25 08:52:38,841 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:38,842 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-25 08:52:38,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/data/f667c81a9/c40afd9a56814a458625794e45359dc3/FLAG29ec8df3c [2019-11-25 08:52:39,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/data/f667c81a9/c40afd9a56814a458625794e45359dc3 [2019-11-25 08:52:39,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:39,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:39,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:39,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:39,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:39,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227bcf2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39, skipping insertion in model container [2019-11-25 08:52:39,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:39,265 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:39,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:39,621 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:39,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:39,774 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:39,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39 WrapperNode [2019-11-25 08:52:39,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:39,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:39,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:39,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:39,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:39,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:39,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:39,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:39,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... [2019-11-25 08:52:39,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:39,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:39,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:39,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:39,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/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 [2019-11-25 08:52:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:52:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:40,707 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:40,708 INFO L284 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-25 08:52:40,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:40 BoogieIcfgContainer [2019-11-25 08:52:40,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:40,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:40,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:40,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:40,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:39" (1/3) ... [2019-11-25 08:52:40,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed12f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:40, skipping insertion in model container [2019-11-25 08:52:40,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:39" (2/3) ... [2019-11-25 08:52:40,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed12f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:40, skipping insertion in model container [2019-11-25 08:52:40,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:40" (3/3) ... [2019-11-25 08:52:40,719 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2019-11-25 08:52:40,731 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:40,738 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-25 08:52:40,755 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-25 08:52:40,782 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:40,783 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:40,783 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:40,783 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:40,783 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:40,801 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:40,801 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:40,801 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:40,824 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-11-25 08:52:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:52:40,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:40,833 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:40,837 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:40,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:40,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1594902839, now seen corresponding path program 1 times [2019-11-25 08:52:40,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:40,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627348344] [2019-11-25 08:52:40,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:41,092 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627348344] [2019-11-25 08:52:41,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:41,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:52:41,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333776051] [2019-11-25 08:52:41,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:52:41,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:41,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:52:41,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:52:41,109 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-11-25 08:52:41,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:41,133 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2019-11-25 08:52:41,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:52:41,135 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-25 08:52:41,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:41,145 INFO L225 Difference]: With dead ends: 168 [2019-11-25 08:52:41,145 INFO L226 Difference]: Without dead ends: 83 [2019-11-25 08:52:41,149 INFO L630 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 [2019-11-25 08:52:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-25 08:52:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-11-25 08:52:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-25 08:52:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-11-25 08:52:41,195 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2019-11-25 08:52:41,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:41,196 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-11-25 08:52:41,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:52:41,196 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-11-25 08:52:41,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:52:41,197 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:41,197 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:41,198 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:41,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:41,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1653307560, now seen corresponding path program 1 times [2019-11-25 08:52:41,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:41,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752019189] [2019-11-25 08:52:41,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:41,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:41,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752019189] [2019-11-25 08:52:41,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:41,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:52:41,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853764703] [2019-11-25 08:52:41,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:41,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:41,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:41,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:41,319 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2019-11-25 08:52:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:41,330 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-11-25 08:52:41,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:41,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-25 08:52:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:41,332 INFO L225 Difference]: With dead ends: 83 [2019-11-25 08:52:41,332 INFO L226 Difference]: Without dead ends: 37 [2019-11-25 08:52:41,333 INFO L630 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 [2019-11-25 08:52:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-25 08:52:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-25 08:52:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-25 08:52:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-11-25 08:52:41,340 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2019-11-25 08:52:41,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:41,341 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-11-25 08:52:41,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-11-25 08:52:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:52:41,342 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:41,342 INFO L410 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] [2019-11-25 08:52:41,342 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:41,342 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2019-11-25 08:52:41,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:41,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014489791] [2019-11-25 08:52:41,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:41,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014489791] [2019-11-25 08:52:41,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:41,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:52:41,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598801483] [2019-11-25 08:52:41,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:41,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:41,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:41,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:41,443 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2019-11-25 08:52:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:41,476 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2019-11-25 08:52:41,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:41,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-25 08:52:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:41,478 INFO L225 Difference]: With dead ends: 68 [2019-11-25 08:52:41,478 INFO L226 Difference]: Without dead ends: 37 [2019-11-25 08:52:41,478 INFO L630 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 [2019-11-25 08:52:41,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-25 08:52:41,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-25 08:52:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-25 08:52:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2019-11-25 08:52:41,490 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2019-11-25 08:52:41,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:41,491 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2019-11-25 08:52:41,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:41,492 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2019-11-25 08:52:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-25 08:52:41,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:41,493 INFO L410 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] [2019-11-25 08:52:41,494 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:41,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:41,494 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2019-11-25 08:52:41,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:41,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119429846] [2019-11-25 08:52:41,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:41,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119429846] [2019-11-25 08:52:41,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:41,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:52:41,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785169857] [2019-11-25 08:52:41,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:41,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:41,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:41,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:41,603 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2019-11-25 08:52:41,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:41,627 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-11-25 08:52:41,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:41,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-25 08:52:41,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:41,629 INFO L225 Difference]: With dead ends: 89 [2019-11-25 08:52:41,629 INFO L226 Difference]: Without dead ends: 58 [2019-11-25 08:52:41,630 INFO L630 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 [2019-11-25 08:52:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-25 08:52:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-11-25 08:52:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-25 08:52:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-11-25 08:52:41,638 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2019-11-25 08:52:41,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:41,638 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-11-25 08:52:41,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:41,639 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-11-25 08:52:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:52:41,640 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:41,640 INFO L410 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] [2019-11-25 08:52:41,640 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:41,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:41,641 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2019-11-25 08:52:41,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:41,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481884834] [2019-11-25 08:52:41,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:41,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481884834] [2019-11-25 08:52:41,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:41,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:52:41,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798233184] [2019-11-25 08:52:41,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:41,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:41,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:41,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:41,805 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 7 states. [2019-11-25 08:52:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:42,121 INFO L93 Difference]: Finished difference Result 347 states and 506 transitions. [2019-11-25 08:52:42,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:52:42,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2019-11-25 08:52:42,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:42,125 INFO L225 Difference]: With dead ends: 347 [2019-11-25 08:52:42,126 INFO L226 Difference]: Without dead ends: 297 [2019-11-25 08:52:42,127 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-11-25 08:52:42,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2019-11-25 08:52:42,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 140. [2019-11-25 08:52:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-25 08:52:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2019-11-25 08:52:42,160 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 29 [2019-11-25 08:52:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:42,160 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2019-11-25 08:52:42,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:42,164 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2019-11-25 08:52:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-25 08:52:42,173 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:42,173 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-11-25 08:52:42,173 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:42,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1559974996, now seen corresponding path program 1 times [2019-11-25 08:52:42,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:42,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613489913] [2019-11-25 08:52:42,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-25 08:52:42,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613489913] [2019-11-25 08:52:42,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:42,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:52:42,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683470884] [2019-11-25 08:52:42,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:52:42,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:42,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:52:42,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:42,281 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand 5 states. [2019-11-25 08:52:42,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:42,340 INFO L93 Difference]: Finished difference Result 388 states and 531 transitions. [2019-11-25 08:52:42,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:52:42,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-11-25 08:52:42,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:42,342 INFO L225 Difference]: With dead ends: 388 [2019-11-25 08:52:42,343 INFO L226 Difference]: Without dead ends: 254 [2019-11-25 08:52:42,344 INFO L630 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 [2019-11-25 08:52:42,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-11-25 08:52:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 149. [2019-11-25 08:52:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-25 08:52:42,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2019-11-25 08:52:42,362 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 47 [2019-11-25 08:52:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:42,363 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2019-11-25 08:52:42,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:52:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2019-11-25 08:52:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-25 08:52:42,365 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:42,365 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-11-25 08:52:42,365 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:42,366 INFO L82 PathProgramCache]: Analyzing trace with hash -2069448086, now seen corresponding path program 1 times [2019-11-25 08:52:42,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:42,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32183977] [2019-11-25 08:52:42,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-25 08:52:42,417 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32183977] [2019-11-25 08:52:42,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:42,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:52:42,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068679449] [2019-11-25 08:52:42,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:52:42,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:42,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:52:42,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:52:42,418 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand 4 states. [2019-11-25 08:52:42,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:42,456 INFO L93 Difference]: Finished difference Result 311 states and 422 transitions. [2019-11-25 08:52:42,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:52:42,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-11-25 08:52:42,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:42,460 INFO L225 Difference]: With dead ends: 311 [2019-11-25 08:52:42,460 INFO L226 Difference]: Without dead ends: 168 [2019-11-25 08:52:42,461 INFO L630 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 [2019-11-25 08:52:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-25 08:52:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 123. [2019-11-25 08:52:42,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-25 08:52:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2019-11-25 08:52:42,486 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 47 [2019-11-25 08:52:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:42,486 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2019-11-25 08:52:42,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:52:42,486 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2019-11-25 08:52:42,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-25 08:52:42,487 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:42,488 INFO L410 BasicCegarLoop]: trace histogram [2, 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] [2019-11-25 08:52:42,488 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:42,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:42,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1874975382, now seen corresponding path program 1 times [2019-11-25 08:52:42,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:42,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129866935] [2019-11-25 08:52:42,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:42,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129866935] [2019-11-25 08:52:42,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636681118] [2019-11-25 08:52:42,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:42,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:52:42,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:42,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:52:42,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-11-25 08:52:42,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142963630] [2019-11-25 08:52:42,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:52:42,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:42,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:52:42,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:42,861 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand 8 states. [2019-11-25 08:52:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:43,084 INFO L93 Difference]: Finished difference Result 424 states and 586 transitions. [2019-11-25 08:52:43,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-25 08:52:43,084 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2019-11-25 08:52:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:43,086 INFO L225 Difference]: With dead ends: 424 [2019-11-25 08:52:43,087 INFO L226 Difference]: Without dead ends: 330 [2019-11-25 08:52:43,087 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-11-25 08:52:43,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-25 08:52:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 162. [2019-11-25 08:52:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-25 08:52:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2019-11-25 08:52:43,104 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 48 [2019-11-25 08:52:43,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:43,105 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2019-11-25 08:52:43,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:52:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2019-11-25 08:52:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-25 08:52:43,106 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:43,106 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-25 08:52:43,310 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:43,310 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:43,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1478909471, now seen corresponding path program 2 times [2019-11-25 08:52:43,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:43,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163914428] [2019-11-25 08:52:43,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:43,540 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:43,540 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:52:43,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:43 BoogieIcfgContainer [2019-11-25 08:52:43,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:43,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:43,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:43,726 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:43,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:40" (3/4) ... [2019-11-25 08:52:43,731 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:52:43,846 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a419ccdf-2690-4702-9c6e-fd88f7377c72/bin/uautomizer/witness.graphml [2019-11-25 08:52:43,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:43,848 INFO L168 Benchmark]: Toolchain (without parser) took 4648.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 952.8 MB in the beginning and 992.0 MB in the end (delta: -39.2 MB). Peak memory consumption was 96.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,848 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:43,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 947.5 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,849 INFO L168 Benchmark]: Boogie Preprocessor took 55.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:43,850 INFO L168 Benchmark]: RCFGBuilder took 813.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,850 INFO L168 Benchmark]: TraceAbstraction took 3016.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,850 INFO L168 Benchmark]: Witness Printer took 120.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 992.0 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,852 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 575.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 947.5 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 813.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3016.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Witness Printer took 120.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 992.0 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] int retValue_acc ; [L650] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE ! pumpRunning [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] tmp = isHighWaterSensorDry() [L901] COND FALSE !(\read(tmp)) [L904] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] tmp = isHighWaterLevel() [L785] COND TRUE \read(tmp) [L812] int tmp ; [L837] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] retValue_acc = isMethaneLevelCritical() [L843] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] tmp = isMethaneAlarm() [L818] COND FALSE !(\read(tmp)) [L806] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L749] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L781] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] tmp = getWaterLevel() [L555] COND TRUE tmp == 0 [L848] int retValue_acc ; [L851] retValue_acc = pumpRunning [L852] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L557] tmp___0 = isPumpRunning() [L559] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 600 SDtfs, 931 SDslu, 945 SDs, 0 SdLazy, 164 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=8, 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, 8 MinimizatonAttempts, 477 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 18814 SizeOfPredicates, 4 NumberOfNonLiveVariables, 395 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 50/56 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...