./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 351e1061dd8393b15ba9fc7223df15ae9d3170ab ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-11-28 17:26:24,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:26:24,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:26:24,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:26:24,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:26:24,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:26:24,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:26:24,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:26:24,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:26:24,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:26:24,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:26:24,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:26:24,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:26:24,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:26:24,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:26:24,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:26:24,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:26:24,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:26:24,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:26:24,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:26:24,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:26:24,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:26:24,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:26:24,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:26:24,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:26:24,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:26:24,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:26:24,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:26:24,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:26:24,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:26:24,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:26:24,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:26:24,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:26:24,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:26:24,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:26:24,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:26:24,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:26:24,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:26:24,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:26:24,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:26:24,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:26:24,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:26:24,818 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:26:24,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:26:24,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:26:24,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:26:24,820 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:26:24,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:26:24,823 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:26:24,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:26:24,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:26:24,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:26:24,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:26:24,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:26:24,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:26:24,825 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:26:24,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:26:24,825 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:26:24,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:26:24,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:26:24,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:26:24,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:26:24,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:26:24,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:26:24,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:26:24,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:26:24,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:26:24,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:26:24,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:26:24,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:26:24,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:26:24,830 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2019-11-28 17:26:25,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:26:25,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:26:25,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:26:25,159 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:26:25,160 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:26:25,160 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-11-28 17:26:25,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7421a26/43f3e01d73bf494aabb4cbd0fe3c19bf/FLAGdbcf99297 [2019-11-28 17:26:25,723 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:26:25,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-11-28 17:26:25,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7421a26/43f3e01d73bf494aabb4cbd0fe3c19bf/FLAGdbcf99297 [2019-11-28 17:26:26,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7421a26/43f3e01d73bf494aabb4cbd0fe3c19bf [2019-11-28 17:26:26,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:26:26,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:26:26,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:26,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:26:26,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:26:26,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26, skipping insertion in model container [2019-11-28 17:26:26,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:26:26,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:26:26,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:26,688 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:26:26,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:26,812 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:26:26,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26 WrapperNode [2019-11-28 17:26:26,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:26,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:26,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:26:26,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:26:26,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:26,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:26:26,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:26:26,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:26:26,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... [2019-11-28 17:26:26,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:26:26,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:26:26,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:26:26,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:26:26,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 17:26:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:26:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:26:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:26:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:26:28,228 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:26:28,228 INFO L287 CfgBuilder]: Removed 360 assume(true) statements. [2019-11-28 17:26:28,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:28 BoogieIcfgContainer [2019-11-28 17:26:28,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:26:28,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:26:28,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:26:28,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:26:28,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:26:26" (1/3) ... [2019-11-28 17:26:28,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cf6e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:26:28, skipping insertion in model container [2019-11-28 17:26:28,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:26" (2/3) ... [2019-11-28 17:26:28,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cf6e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:26:28, skipping insertion in model container [2019-11-28 17:26:28,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:28" (3/3) ... [2019-11-28 17:26:28,245 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2019-11-28 17:26:28,256 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:26:28,264 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 17:26:28,277 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 17:26:28,312 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:26:28,313 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:26:28,313 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:26:28,314 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:26:28,314 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:26:28,315 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:26:28,315 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:26:28,315 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:26:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2019-11-28 17:26:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 17:26:28,351 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:28,352 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:26:28,352 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:28,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:28,359 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2019-11-28 17:26:28,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:28,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272566237] [2019-11-28 17:26:28,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:28,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:28,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272566237] [2019-11-28 17:26:28,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:28,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:26:28,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558109956] [2019-11-28 17:26:28,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:26:28,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:28,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:26:28,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:26:28,692 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2019-11-28 17:26:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:28,783 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2019-11-28 17:26:28,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:26:28,786 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 17:26:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:28,808 INFO L225 Difference]: With dead ends: 460 [2019-11-28 17:26:28,809 INFO L226 Difference]: Without dead ends: 229 [2019-11-28 17:26:28,816 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 [2019-11-28 17:26:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-11-28 17:26:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-11-28 17:26:28,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-11-28 17:26:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2019-11-28 17:26:28,876 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2019-11-28 17:26:28,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:28,876 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2019-11-28 17:26:28,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:26:28,877 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2019-11-28 17:26:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:26:28,878 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:28,879 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:26:28,879 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:28,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2019-11-28 17:26:28,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:28,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196544187] [2019-11-28 17:26:28,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:29,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196544187] [2019-11-28 17:26:29,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:29,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:26:29,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194036942] [2019-11-28 17:26:29,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:26:29,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:29,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:26:29,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:29,023 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2019-11-28 17:26:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:29,056 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2019-11-28 17:26:29,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:26:29,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 17:26:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:29,059 INFO L225 Difference]: With dead ends: 229 [2019-11-28 17:26:29,060 INFO L226 Difference]: Without dead ends: 87 [2019-11-28 17:26:29,061 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 [2019-11-28 17:26:29,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-28 17:26:29,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-11-28 17:26:29,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-28 17:26:29,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2019-11-28 17:26:29,072 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2019-11-28 17:26:29,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:29,073 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2019-11-28 17:26:29,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:26:29,073 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2019-11-28 17:26:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 17:26:29,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:29,076 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] [2019-11-28 17:26:29,076 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:29,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2019-11-28 17:26:29,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:29,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357536135] [2019-11-28 17:26:29,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:29,147 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357536135] [2019-11-28 17:26:29,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:29,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:26:29,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199146644] [2019-11-28 17:26:29,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:26:29,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:29,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:26:29,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:29,150 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 3 states. [2019-11-28 17:26:29,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:29,204 INFO L93 Difference]: Finished difference Result 249 states and 369 transitions. [2019-11-28 17:26:29,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:26:29,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-28 17:26:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:29,207 INFO L225 Difference]: With dead ends: 249 [2019-11-28 17:26:29,207 INFO L226 Difference]: Without dead ends: 168 [2019-11-28 17:26:29,208 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 [2019-11-28 17:26:29,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-28 17:26:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2019-11-28 17:26:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-28 17:26:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2019-11-28 17:26:29,234 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 24 [2019-11-28 17:26:29,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:29,235 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2019-11-28 17:26:29,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:26:29,235 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2019-11-28 17:26:29,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 17:26:29,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:29,237 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] [2019-11-28 17:26:29,238 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:29,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:29,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2019-11-28 17:26:29,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:29,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249665926] [2019-11-28 17:26:29,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:29,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249665926] [2019-11-28 17:26:29,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:29,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:26:29,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536844330] [2019-11-28 17:26:29,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:26:29,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:29,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:26:29,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:26:29,332 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand 3 states. [2019-11-28 17:26:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:29,397 INFO L93 Difference]: Finished difference Result 337 states and 504 transitions. [2019-11-28 17:26:29,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:26:29,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-28 17:26:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:29,399 INFO L225 Difference]: With dead ends: 337 [2019-11-28 17:26:29,400 INFO L226 Difference]: Without dead ends: 179 [2019-11-28 17:26:29,402 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 [2019-11-28 17:26:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-28 17:26:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2019-11-28 17:26:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-28 17:26:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2019-11-28 17:26:29,427 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 27 [2019-11-28 17:26:29,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:29,428 INFO L462 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2019-11-28 17:26:29,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:26:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2019-11-28 17:26:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 17:26:29,431 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:29,431 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] [2019-11-28 17:26:29,431 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:29,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:29,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2019-11-28 17:26:29,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:29,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574105279] [2019-11-28 17:26:29,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:26:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:26:29,560 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574105279] [2019-11-28 17:26:29,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:26:29,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:26:29,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676402211] [2019-11-28 17:26:29,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:26:29,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:26:29,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:26:29,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:26:29,563 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand 5 states. [2019-11-28 17:26:29,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:26:29,738 INFO L93 Difference]: Finished difference Result 899 states and 1311 transitions. [2019-11-28 17:26:29,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:26:29,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 17:26:29,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:26:29,744 INFO L225 Difference]: With dead ends: 899 [2019-11-28 17:26:29,744 INFO L226 Difference]: Without dead ends: 728 [2019-11-28 17:26:29,745 INFO L630 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 [2019-11-28 17:26:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-11-28 17:26:29,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 276. [2019-11-28 17:26:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-11-28 17:26:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 388 transitions. [2019-11-28 17:26:29,773 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 388 transitions. Word has length 27 [2019-11-28 17:26:29,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:26:29,773 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 388 transitions. [2019-11-28 17:26:29,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:26:29,774 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 388 transitions. [2019-11-28 17:26:29,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-28 17:26:29,775 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:26:29,776 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] [2019-11-28 17:26:29,776 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:26:29,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:26:29,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2019-11-28 17:26:29,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:26:29,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160160969] [2019-11-28 17:26:29,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:26:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:26:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:26:29,962 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:26:29,962 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:26:30,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:26:30 BoogieIcfgContainer [2019-11-28 17:26:30,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:26:30,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:26:30,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:26:30,087 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:26:30,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:28" (3/4) ... [2019-11-28 17:26:30,091 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:26:30,207 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:26:30,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:26:30,210 INFO L168 Benchmark]: Toolchain (without parser) took 4138.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.7 MB in the beginning and 845.8 MB in the end (delta: 115.9 MB). Peak memory consumption was 249.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:26:30,211 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:26:30,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -148.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:26:30,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.11 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. [2019-11-28 17:26:30,213 INFO L168 Benchmark]: Boogie Preprocessor took 83.05 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. [2019-11-28 17:26:30,214 INFO L168 Benchmark]: RCFGBuilder took 1233.16 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: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:26:30,215 INFO L168 Benchmark]: TraceAbstraction took 1854.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 859.2 MB in the end (delta: 146.5 MB). Peak memory consumption was 146.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:26:30,215 INFO L168 Benchmark]: Witness Printer took 120.57 ms. Allocated memory is still 1.2 GB. Free memory was 859.2 MB in the beginning and 845.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:26:30,220 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 741.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -148.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 100.11 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 83.05 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. * RCFGBuilder took 1233.16 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: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1854.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 859.2 MB in the end (delta: 146.5 MB). Peak memory consumption was 146.5 MB. Max. memory is 11.5 GB. * Witness Printer took 120.57 ms. Allocated memory is still 1.2 GB. Free memory was 859.2 MB in the beginning and 845.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L969] int retValue_acc ; [L970] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L367] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L341] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L98] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L996] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 233 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 694 SDslu, 598 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=5, 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, 5 MinimizatonAttempts, 458 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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...