./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/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 75ad40de7ac44b78584ba916fa204e981921222d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 00:24:53,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:24:53,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:24:53,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:24:53,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:24:53,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:24:53,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:24:53,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:24:53,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:24:53,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:24:53,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:24:53,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:24:53,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:24:53,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:24:53,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:24:53,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:24:53,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:24:53,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:24:53,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:24:53,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:24:53,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:24:53,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:24:53,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:24:53,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:24:53,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:24:53,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:24:53,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:24:53,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:24:53,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:24:53,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:24:53,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:24:53,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:24:53,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:24:53,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:24:53,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:24:53,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:24:53,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:24:53,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:24:53,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:24:53,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:24:53,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:24:53,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:24:53,463 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:24:53,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:24:53,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:24:53,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:24:53,464 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:24:53,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:24:53,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:24:53,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:24:53,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:24:53,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:24:53,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:24:53,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:24:53,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:24:53,466 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:24:53,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:24:53,466 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:24:53,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:24:53,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:24:53,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:24:53,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:24:53,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:24:53,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:24:53,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:24:53,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:24:53,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:24:53,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:24:53,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:24:53,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:24:53,468 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_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/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 -> 75ad40de7ac44b78584ba916fa204e981921222d [2019-11-20 00:24:53,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:24:53,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:24:53,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:24:53,657 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:24:53,658 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:24:53,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-11-20 00:24:53,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/data/142aa50bb/3405f08ae5814ff589a02528b0b20c34/FLAG7c310df8f [2019-11-20 00:24:54,190 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:24:54,194 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-11-20 00:24:54,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/data/142aa50bb/3405f08ae5814ff589a02528b0b20c34/FLAG7c310df8f [2019-11-20 00:24:54,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/data/142aa50bb/3405f08ae5814ff589a02528b0b20c34 [2019-11-20 00:24:54,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:24:54,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:24:54,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:24:54,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:24:54,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:24:54,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:24:54" (1/1) ... [2019-11-20 00:24:54,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e1ca53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:54, skipping insertion in model container [2019-11-20 00:24:54,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:24:54" (1/1) ... [2019-11-20 00:24:54,537 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:24:54,584 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:24:54,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:24:54,903 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:24:54,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:24:55,028 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:24:55,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55 WrapperNode [2019-11-20 00:24:55,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:24:55,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:24:55,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:24:55,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:24:55,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:24:55,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:24:55,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:24:55,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:24:55,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... [2019-11-20 00:24:55,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:24:55,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:24:55,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:24:55,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:24:55,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/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 [2019-11-20 00:24:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:24:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 00:24:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:24:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:24:56,000 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:24:56,000 INFO L285 CfgBuilder]: Removed 106 assume(true) statements. [2019-11-20 00:24:56,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:56 BoogieIcfgContainer [2019-11-20 00:24:56,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:24:56,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:24:56,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:24:56,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:24:56,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:24:54" (1/3) ... [2019-11-20 00:24:56,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a5c013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:56, skipping insertion in model container [2019-11-20 00:24:56,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:55" (2/3) ... [2019-11-20 00:24:56,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a5c013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:56, skipping insertion in model container [2019-11-20 00:24:56,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:56" (3/3) ... [2019-11-20 00:24:56,008 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2019-11-20 00:24:56,016 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:24:56,023 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 00:24:56,033 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 00:24:56,058 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:24:56,058 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:24:56,058 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:24:56,058 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:24:56,058 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:24:56,058 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:24:56,058 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:24:56,059 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:24:56,073 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-11-20 00:24:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 00:24:56,080 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:24:56,081 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:24:56,081 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:24:56,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:24:56,085 INFO L82 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2019-11-20 00:24:56,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:24:56,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272632177] [2019-11-20 00:24:56,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:24:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:24:56,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:24:56,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272632177] [2019-11-20 00:24:56,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:24:56,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:24:56,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444044665] [2019-11-20 00:24:56,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:24:56,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:24:56,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:24:56,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:24:56,334 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2019-11-20 00:24:56,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:24:56,356 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2019-11-20 00:24:56,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:24:56,358 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-20 00:24:56,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:24:56,368 INFO L225 Difference]: With dead ends: 166 [2019-11-20 00:24:56,368 INFO L226 Difference]: Without dead ends: 82 [2019-11-20 00:24:56,371 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 [2019-11-20 00:24:56,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-20 00:24:56,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-11-20 00:24:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 00:24:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2019-11-20 00:24:56,411 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2019-11-20 00:24:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:24:56,412 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2019-11-20 00:24:56,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:24:56,412 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2019-11-20 00:24:56,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 00:24:56,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:24:56,413 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:24:56,413 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:24:56,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:24:56,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2019-11-20 00:24:56,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:24:56,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733274385] [2019-11-20 00:24:56,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:24:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:24:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:24:56,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733274385] [2019-11-20 00:24:56,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:24:56,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:24:56,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998349676] [2019-11-20 00:24:56,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:24:56,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:24:56,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:24:56,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:24:56,515 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2019-11-20 00:24:56,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:24:56,528 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-11-20 00:24:56,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:24:56,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-20 00:24:56,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:24:56,531 INFO L225 Difference]: With dead ends: 82 [2019-11-20 00:24:56,531 INFO L226 Difference]: Without dead ends: 38 [2019-11-20 00:24:56,532 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 [2019-11-20 00:24:56,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-20 00:24:56,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-11-20 00:24:56,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 00:24:56,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-11-20 00:24:56,537 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-11-20 00:24:56,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:24:56,537 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-11-20 00:24:56,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:24:56,538 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-11-20 00:24:56,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 00:24:56,539 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:24:56,539 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] [2019-11-20 00:24:56,539 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:24:56,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:24:56,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2019-11-20 00:24:56,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:24:56,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368257801] [2019-11-20 00:24:56,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:24:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:24:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:24:56,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368257801] [2019-11-20 00:24:56,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:24:56,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 00:24:56,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751771390] [2019-11-20 00:24:56,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 00:24:56,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:24:56,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:24:56,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:24:56,646 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 6 states. [2019-11-20 00:24:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:24:56,798 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2019-11-20 00:24:56,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:24:56,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-20 00:24:56,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:24:56,800 INFO L225 Difference]: With dead ends: 127 [2019-11-20 00:24:56,800 INFO L226 Difference]: Without dead ends: 95 [2019-11-20 00:24:56,803 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 00:24:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-20 00:24:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2019-11-20 00:24:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-20 00:24:56,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2019-11-20 00:24:56,818 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2019-11-20 00:24:56,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:24:56,819 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2019-11-20 00:24:56,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 00:24:56,819 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2019-11-20 00:24:56,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 00:24:56,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:24:56,820 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] [2019-11-20 00:24:56,820 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:24:56,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:24:56,821 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2019-11-20 00:24:56,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:24:56,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111260288] [2019-11-20 00:24:56,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:24:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:24:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:24:56,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111260288] [2019-11-20 00:24:56,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:24:56,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:24:56,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403151528] [2019-11-20 00:24:56,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:24:56,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:24:56,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:24:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:24:56,916 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2019-11-20 00:24:56,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:24:56,963 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2019-11-20 00:24:56,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:24:56,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-20 00:24:56,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:24:56,966 INFO L225 Difference]: With dead ends: 135 [2019-11-20 00:24:56,966 INFO L226 Difference]: Without dead ends: 82 [2019-11-20 00:24:56,966 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 [2019-11-20 00:24:56,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-20 00:24:56,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2019-11-20 00:24:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 00:24:56,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2019-11-20 00:24:56,988 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2019-11-20 00:24:56,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:24:56,990 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2019-11-20 00:24:56,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:24:56,991 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2019-11-20 00:24:56,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 00:24:56,993 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:24:56,993 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] [2019-11-20 00:24:56,993 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:24:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:24:56,994 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2019-11-20 00:24:56,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:24:56,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87255037] [2019-11-20 00:24:56,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:24:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:24:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:24:57,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87255037] [2019-11-20 00:24:57,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:24:57,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 00:24:57,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629482195] [2019-11-20 00:24:57,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 00:24:57,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:24:57,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:24:57,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:24:57,105 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 5 states. [2019-11-20 00:24:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:24:57,236 INFO L93 Difference]: Finished difference Result 427 states and 628 transitions. [2019-11-20 00:24:57,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 00:24:57,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 00:24:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:24:57,240 INFO L225 Difference]: With dead ends: 427 [2019-11-20 00:24:57,240 INFO L226 Difference]: Without dead ends: 353 [2019-11-20 00:24:57,241 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 [2019-11-20 00:24:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-11-20 00:24:57,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 144. [2019-11-20 00:24:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-20 00:24:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 201 transitions. [2019-11-20 00:24:57,269 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 201 transitions. Word has length 27 [2019-11-20 00:24:57,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:24:57,269 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 201 transitions. [2019-11-20 00:24:57,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 00:24:57,270 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 201 transitions. [2019-11-20 00:24:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 00:24:57,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:24:57,272 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] [2019-11-20 00:24:57,272 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:24:57,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:24:57,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2019-11-20 00:24:57,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:24:57,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513286452] [2019-11-20 00:24:57,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:24:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:24:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:24:57,478 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:24:57,478 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:24:57,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:24:57 BoogieIcfgContainer [2019-11-20 00:24:57,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:24:57,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:24:57,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:24:57,588 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:24:57,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:56" (3/4) ... [2019-11-20 00:24:57,591 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 00:24:57,720 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6686c7b2-9089-4a5d-ae2e-0ade7c47aebb/bin/uautomizer/witness.graphml [2019-11-20 00:24:57,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:24:57,723 INFO L168 Benchmark]: Toolchain (without parser) took 3198.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 951.5 MB in the beginning and 970.2 MB in the end (delta: -18.7 MB). Peak memory consumption was 173.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:24:57,723 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-20 00:24:57,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -229.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:24:57,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.55 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:24:57,725 INFO L168 Benchmark]: Boogie Preprocessor took 55.33 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. [2019-11-20 00:24:57,725 INFO L168 Benchmark]: RCFGBuilder took 827.57 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:24:57,725 INFO L168 Benchmark]: TraceAbstraction took 1585.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.9 MB in the end (delta: 128.9 MB). Peak memory consumption was 128.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:24:57,726 INFO L168 Benchmark]: Witness Printer took 133.45 ms. Allocated memory is still 1.2 GB. Free memory was 980.9 MB in the beginning and 970.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:24:57,728 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 504.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -229.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.55 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.33 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 827.57 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1585.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.9 MB in the end (delta: 128.9 MB). Peak memory consumption was 128.9 MB. Max. memory is 11.5 GB. * Witness Printer took 133.45 ms. Allocated memory is still 1.2 GB. Free memory was 980.9 MB in the beginning and 970.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L276] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L283] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L135] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] __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, 86 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 361 SDtfs, 484 SDslu, 517 SDs, 0 SdLazy, 72 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 247 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5373 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...