./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/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 45e9be5ff3d2c5f3e04037cd81f89ba3fcf7e541 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-cad4683 [2019-11-15 20:22:04,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:22:04,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:22:04,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:22:04,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:22:04,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:22:04,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:22:04,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:22:04,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:22:04,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:22:05,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:22:05,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:22:05,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:22:05,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:22:05,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:22:05,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:22:05,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:22:05,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:22:05,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:22:05,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:22:05,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:22:05,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:22:05,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:22:05,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:22:05,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:22:05,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:22:05,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:22:05,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:22:05,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:22:05,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:22:05,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:22:05,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:22:05,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:22:05,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:22:05,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:22:05,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:22:05,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:22:05,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:22:05,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:22:05,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:22:05,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:22:05,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:22:05,035 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:22:05,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:22:05,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:22:05,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:22:05,037 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:22:05,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:22:05,038 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:22:05,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:22:05,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:22:05,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:22:05,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:22:05,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:22:05,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:22:05,039 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:22:05,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:22:05,040 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:22:05,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:22:05,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:22:05,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:22:05,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:22:05,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:22:05,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:22:05,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:22:05,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:22:05,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:22:05,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:22:05,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:22:05,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:22:05,042 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_13114e58-7dc0-48e0-8a32-4232b32fd618/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 -> 45e9be5ff3d2c5f3e04037cd81f89ba3fcf7e541 [2019-11-15 20:22:05,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:22:05,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:22:05,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:22:05,092 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:22:05,093 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:22:05,094 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2019-11-15 20:22:05,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/data/0674026c9/d781da346f0241e6b079bebfd836dcb0/FLAGd0f2ec61b [2019-11-15 20:22:05,590 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:22:05,590 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2019-11-15 20:22:05,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/data/0674026c9/d781da346f0241e6b079bebfd836dcb0/FLAGd0f2ec61b [2019-11-15 20:22:05,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/data/0674026c9/d781da346f0241e6b079bebfd836dcb0 [2019-11-15 20:22:05,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:22:05,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:22:05,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:22:05,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:22:05,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:22:05,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:22:05" (1/1) ... [2019-11-15 20:22:05,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c52c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:05, skipping insertion in model container [2019-11-15 20:22:05,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:22:05" (1/1) ... [2019-11-15 20:22:05,974 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:22:06,026 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:22:06,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:22:06,413 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:22:06,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:22:06,567 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:22:06,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06 WrapperNode [2019-11-15 20:22:06,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:22:06,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:22:06,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:22:06,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:22:06,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:22:06,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:22:06,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:22:06,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:22:06,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... [2019-11-15 20:22:06,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:22:06,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:22:06,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:22:06,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:22:06,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/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 [2019-11-15 20:22:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:22:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 20:22:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:22:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:22:07,419 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:22:07,420 INFO L284 CfgBuilder]: Removed 98 assume(true) statements. [2019-11-15 20:22:07,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:22:07 BoogieIcfgContainer [2019-11-15 20:22:07,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:22:07,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:22:07,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:22:07,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:22:07,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:22:05" (1/3) ... [2019-11-15 20:22:07,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39af7670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:22:07, skipping insertion in model container [2019-11-15 20:22:07,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:06" (2/3) ... [2019-11-15 20:22:07,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39af7670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:22:07, skipping insertion in model container [2019-11-15 20:22:07,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:22:07" (3/3) ... [2019-11-15 20:22:07,428 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2019-11-15 20:22:07,437 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:22:07,448 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-15 20:22:07,457 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-15 20:22:07,487 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:22:07,487 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:22:07,487 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:22:07,487 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:22:07,487 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:22:07,488 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:22:07,488 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:22:07,488 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:22:07,506 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-11-15 20:22:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 20:22:07,513 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:07,514 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:07,518 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:07,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:07,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1424204181, now seen corresponding path program 1 times [2019-11-15 20:22:07,533 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:07,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143757725] [2019-11-15 20:22:07,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:07,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:07,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:07,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143757725] [2019-11-15 20:22:07,729 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:07,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:22:07,730 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866107693] [2019-11-15 20:22:07,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:22:07,734 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:07,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:22:07,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:22:07,751 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2019-11-15 20:22:07,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:07,779 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2019-11-15 20:22:07,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:22:07,781 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-15 20:22:07,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:07,793 INFO L225 Difference]: With dead ends: 150 [2019-11-15 20:22:07,793 INFO L226 Difference]: Without dead ends: 74 [2019-11-15 20:22:07,797 INFO L600 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 [2019-11-15 20:22:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-11-15 20:22:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-11-15 20:22:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-15 20:22:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-11-15 20:22:07,840 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2019-11-15 20:22:07,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:07,841 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-11-15 20:22:07,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:22:07,841 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-11-15 20:22:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 20:22:07,842 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:07,842 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:07,843 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:07,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:07,843 INFO L82 PathProgramCache]: Analyzing trace with hash -631654862, now seen corresponding path program 1 times [2019-11-15 20:22:07,844 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:07,844 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176671897] [2019-11-15 20:22:07,844 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:07,844 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:07,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:07,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176671897] [2019-11-15 20:22:07,977 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:07,977 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:22:07,977 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731856960] [2019-11-15 20:22:07,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:22:07,979 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:07,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:22:07,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:22:07,980 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 3 states. [2019-11-15 20:22:07,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:07,994 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2019-11-15 20:22:07,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:22:07,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-15 20:22:07,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:07,996 INFO L225 Difference]: With dead ends: 74 [2019-11-15 20:22:07,996 INFO L226 Difference]: Without dead ends: 34 [2019-11-15 20:22:07,997 INFO L600 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 [2019-11-15 20:22:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-15 20:22:08,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-15 20:22:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-15 20:22:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2019-11-15 20:22:08,002 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2019-11-15 20:22:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:08,003 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2019-11-15 20:22:08,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:22:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2019-11-15 20:22:08,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 20:22:08,004 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:08,004 INFO L380 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] [2019-11-15 20:22:08,005 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:08,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:08,005 INFO L82 PathProgramCache]: Analyzing trace with hash -964945646, now seen corresponding path program 1 times [2019-11-15 20:22:08,005 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:08,006 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703169705] [2019-11-15 20:22:08,006 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,006 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:08,089 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703169705] [2019-11-15 20:22:08,090 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:08,090 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:22:08,090 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824756526] [2019-11-15 20:22:08,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:22:08,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:08,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:22:08,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:22:08,091 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 5 states. [2019-11-15 20:22:08,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:08,145 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2019-11-15 20:22:08,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:22:08,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-15 20:22:08,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:08,148 INFO L225 Difference]: With dead ends: 62 [2019-11-15 20:22:08,148 INFO L226 Difference]: Without dead ends: 34 [2019-11-15 20:22:08,149 INFO L600 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 [2019-11-15 20:22:08,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-15 20:22:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-15 20:22:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-15 20:22:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-11-15 20:22:08,153 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2019-11-15 20:22:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:08,154 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-11-15 20:22:08,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:22:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2019-11-15 20:22:08,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 20:22:08,155 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:08,155 INFO L380 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] [2019-11-15 20:22:08,155 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:08,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:08,156 INFO L82 PathProgramCache]: Analyzing trace with hash -952202930, now seen corresponding path program 1 times [2019-11-15 20:22:08,156 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:08,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70837741] [2019-11-15 20:22:08,156 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,156 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:08,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70837741] [2019-11-15 20:22:08,242 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:08,242 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:22:08,242 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232776920] [2019-11-15 20:22:08,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:22:08,243 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:08,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:22:08,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:22:08,244 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2019-11-15 20:22:08,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:08,297 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2019-11-15 20:22:08,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:22:08,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-15 20:22:08,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:08,299 INFO L225 Difference]: With dead ends: 83 [2019-11-15 20:22:08,299 INFO L226 Difference]: Without dead ends: 55 [2019-11-15 20:22:08,300 INFO L600 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 [2019-11-15 20:22:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-15 20:22:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2019-11-15 20:22:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-15 20:22:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2019-11-15 20:22:08,308 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2019-11-15 20:22:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:08,308 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-11-15 20:22:08,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:22:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2019-11-15 20:22:08,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 20:22:08,309 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:08,310 INFO L380 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] [2019-11-15 20:22:08,310 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:08,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2049720417, now seen corresponding path program 1 times [2019-11-15 20:22:08,311 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:08,311 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185523965] [2019-11-15 20:22:08,311 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,311 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:08,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185523965] [2019-11-15 20:22:08,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:08,391 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:22:08,391 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536097041] [2019-11-15 20:22:08,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:22:08,392 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:08,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:22:08,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:22:08,393 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2019-11-15 20:22:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:08,456 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2019-11-15 20:22:08,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:22:08,458 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-15 20:22:08,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:08,459 INFO L225 Difference]: With dead ends: 139 [2019-11-15 20:22:08,459 INFO L226 Difference]: Without dead ends: 92 [2019-11-15 20:22:08,460 INFO L600 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 [2019-11-15 20:22:08,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-15 20:22:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2019-11-15 20:22:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-15 20:22:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2019-11-15 20:22:08,467 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2019-11-15 20:22:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:08,468 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2019-11-15 20:22:08,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:22:08,468 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2019-11-15 20:22:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 20:22:08,469 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:08,470 INFO L380 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] [2019-11-15 20:22:08,470 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:08,470 INFO L82 PathProgramCache]: Analyzing trace with hash 612790626, now seen corresponding path program 1 times [2019-11-15 20:22:08,471 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:08,471 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122380207] [2019-11-15 20:22:08,471 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,471 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:08,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122380207] [2019-11-15 20:22:08,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:08,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:22:08,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662218491] [2019-11-15 20:22:08,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:22:08,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:08,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:22:08,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:22:08,561 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2019-11-15 20:22:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:08,660 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2019-11-15 20:22:08,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 20:22:08,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-15 20:22:08,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:08,662 INFO L225 Difference]: With dead ends: 270 [2019-11-15 20:22:08,663 INFO L226 Difference]: Without dead ends: 220 [2019-11-15 20:22:08,663 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:22:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-11-15 20:22:08,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 100. [2019-11-15 20:22:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-15 20:22:08,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2019-11-15 20:22:08,686 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 29 [2019-11-15 20:22:08,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:08,687 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2019-11-15 20:22:08,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:22:08,687 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2019-11-15 20:22:08,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 20:22:08,692 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:08,692 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:08,693 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:08,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:08,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1166654740, now seen corresponding path program 1 times [2019-11-15 20:22:08,693 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:08,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753111240] [2019-11-15 20:22:08,694 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,694 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:08,762 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753111240] [2019-11-15 20:22:08,762 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:08,762 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:22:08,762 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281636532] [2019-11-15 20:22:08,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:22:08,763 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:08,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:22:08,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:22:08,764 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand 5 states. [2019-11-15 20:22:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:08,900 INFO L93 Difference]: Finished difference Result 280 states and 386 transitions. [2019-11-15 20:22:08,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 20:22:08,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-15 20:22:08,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:08,902 INFO L225 Difference]: With dead ends: 280 [2019-11-15 20:22:08,902 INFO L226 Difference]: Without dead ends: 278 [2019-11-15 20:22:08,903 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:22:08,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-15 20:22:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2019-11-15 20:22:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-15 20:22:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2019-11-15 20:22:08,933 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 30 [2019-11-15 20:22:08,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:08,934 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2019-11-15 20:22:08,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:22:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2019-11-15 20:22:08,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 20:22:08,937 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:08,937 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:08,938 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:08,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:08,938 INFO L82 PathProgramCache]: Analyzing trace with hash 72774503, now seen corresponding path program 1 times [2019-11-15 20:22:08,938 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:08,939 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939389722] [2019-11-15 20:22:08,939 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,939 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:08,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:09,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939389722] [2019-11-15 20:22:09,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:09,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:22:09,005 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906494225] [2019-11-15 20:22:09,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:22:09,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:09,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:22:09,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:22:09,007 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand 4 states. [2019-11-15 20:22:09,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:09,046 INFO L93 Difference]: Finished difference Result 240 states and 326 transitions. [2019-11-15 20:22:09,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:22:09,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 20:22:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:09,048 INFO L225 Difference]: With dead ends: 240 [2019-11-15 20:22:09,048 INFO L226 Difference]: Without dead ends: 146 [2019-11-15 20:22:09,049 INFO L600 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 [2019-11-15 20:22:09,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-15 20:22:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 104. [2019-11-15 20:22:09,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-15 20:22:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2019-11-15 20:22:09,070 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 30 [2019-11-15 20:22:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:09,071 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2019-11-15 20:22:09,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:22:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2019-11-15 20:22:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 20:22:09,072 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:09,073 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:09,073 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash 330939941, now seen corresponding path program 1 times [2019-11-15 20:22:09,074 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:09,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58010515] [2019-11-15 20:22:09,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:09,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:09,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:09,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:09,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58010515] [2019-11-15 20:22:09,138 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:09,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:22:09,138 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023748507] [2019-11-15 20:22:09,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:22:09,139 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:09,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:22:09,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:22:09,139 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand 3 states. [2019-11-15 20:22:09,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:09,171 INFO L93 Difference]: Finished difference Result 250 states and 336 transitions. [2019-11-15 20:22:09,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:22:09,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-11-15 20:22:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:09,173 INFO L225 Difference]: With dead ends: 250 [2019-11-15 20:22:09,173 INFO L226 Difference]: Without dead ends: 152 [2019-11-15 20:22:09,174 INFO L600 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 [2019-11-15 20:22:09,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-15 20:22:09,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-15 20:22:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-15 20:22:09,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2019-11-15 20:22:09,216 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 30 [2019-11-15 20:22:09,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:09,216 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2019-11-15 20:22:09,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:22:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2019-11-15 20:22:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 20:22:09,218 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:09,218 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:09,218 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:09,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:09,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1676876253, now seen corresponding path program 1 times [2019-11-15 20:22:09,219 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:09,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116048690] [2019-11-15 20:22:09,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:09,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:09,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:22:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:22:10,085 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:22:10,087 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:22:10,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:22:10 BoogieIcfgContainer [2019-11-15 20:22:10,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:22:10,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:22:10,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:22:10,212 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:22:10,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:22:07" (3/4) ... [2019-11-15 20:22:10,221 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 20:22:10,347 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_13114e58-7dc0-48e0-8a32-4232b32fd618/bin/uautomizer/witness.graphml [2019-11-15 20:22:10,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:22:10,353 INFO L168 Benchmark]: Toolchain (without parser) took 4392.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 943.4 MB in the beginning and 981.1 MB in the end (delta: -37.7 MB). Peak memory consumption was 158.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:10,354 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-15 20:22:10,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -242.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:10,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:10,356 INFO L168 Benchmark]: Boogie Preprocessor took 37.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:22:10,356 INFO L168 Benchmark]: RCFGBuilder took 744.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-11-15 20:22:10,358 INFO L168 Benchmark]: TraceAbstraction took 2789.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.2 MB in the end (delta: 120.6 MB). Peak memory consumption was 120.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:10,359 INFO L168 Benchmark]: Witness Printer took 139.24 ms. Allocated memory is still 1.2 GB. Free memory was 993.2 MB in the beginning and 981.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:10,361 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 608.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -242.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 744.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 2789.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.2 MB in the end (delta: 120.6 MB). Peak memory consumption was 120.6 MB. Max. memory is 11.5 GB. * Witness Printer took 139.24 ms. Allocated memory is still 1.2 GB. Free memory was 993.2 MB in the beginning and 981.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 514]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int waterLevel = 1; [L525] int methaneLevelCritical = 0; [L689] int pumpRunning = 0; [L690] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] int retValue_acc ; [L905] retValue_acc = 1 [L906] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] int splverifierCounter ; [L621] int tmp ; [L622] int tmp___0 ; [L623] int tmp___1 ; [L624] int tmp___2 ; [L627] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L629] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L631] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L637] tmp = __VERIFIER_nondet_int() [L639] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] COND TRUE waterLevel < 2 [L543] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L647] tmp___0 = __VERIFIER_nondet_int() [L649] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] COND FALSE !(\read(methaneLevelCritical)) [L557] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L657] tmp___2 = __VERIFIER_nondet_int() [L659] COND TRUE \read(tmp___2) [L845] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L697] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L704] COND TRUE \read(systemActive) [L726] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L729] COND TRUE ! pumpRunning [L823] int retValue_acc ; [L824] int tmp ; [L825] int tmp___0 ; [L604] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND FALSE !(waterLevel < 2) [L611] retValue_acc = 0 [L612] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] tmp = isHighWaterSensorDry() [L831] COND FALSE !(\read(tmp)) [L834] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L836] retValue_acc = tmp___0 [L837] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] tmp = isHighWaterLevel() [L733] COND TRUE \read(tmp) [L754] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L851] int tmp ; [L852] int tmp___0 ; [L563] int retValue_acc ; [L566] retValue_acc = methaneLevelCritical [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] tmp = isMethaneLevelCritical() [L858] COND TRUE \read(tmp) [L778] int retValue_acc ; [L781] retValue_acc = pumpRunning [L782] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L860] tmp___0 = isPumpRunning() [L862] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 577 SDtfs, 722 SDslu, 756 SDs, 0 SdLazy, 101 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=9, 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, 9 MinimizatonAttempts, 378 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 10827 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...