./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list2.c_1.i --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_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list2.c_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/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 f18f7f1f917468e24f0e5d26966f1156107884dd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:53:53,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:53:53,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:53:53,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:53:53,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:53:53,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:53:53,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:53:53,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:53:53,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:53:53,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:53:53,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:53:53,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:53:53,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:53:53,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:53:53,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:53:53,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:53:53,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:53:53,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:53:53,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:53:53,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:53:53,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:53:53,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:53:53,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:53:53,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:53:53,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:53:53,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:53:53,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:53:53,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:53:53,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:53:53,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:53:53,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:53:53,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:53:53,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:53:53,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:53:53,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:53:53,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:53:53,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:53:53,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:53:53,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:53:53,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:53:53,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:53:53,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:53:53,374 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:53:53,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:53:53,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:53:53,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:53:53,378 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:53:53,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:53:53,379 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:53:53,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:53:53,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:53:53,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:53:53,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:53:53,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:53:53,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:53:53,381 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:53:53,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:53:53,382 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:53:53,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:53:53,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:53:53,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:53:53,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:53:53,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:53:53,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:53:53,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:53:53,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:53:53,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:53:53,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:53:53,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:53:53,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:53:53,384 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_39b56fab-baf4-408a-a471-90f7d1717f80/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 -> f18f7f1f917468e24f0e5d26966f1156107884dd [2019-11-20 09:53:53,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:53:53,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:53:53,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:53:53,569 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:53:53,570 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:53:53,570 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/rule60_list2.c_1.i [2019-11-20 09:53:53,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/data/5058d70b6/3e336c85cd684681920163fa1bd32f76/FLAGfe257ad23 [2019-11-20 09:53:54,119 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:53:54,122 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/sv-benchmarks/c/ldv-regression/rule60_list2.c_1.i [2019-11-20 09:53:54,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/data/5058d70b6/3e336c85cd684681920163fa1bd32f76/FLAGfe257ad23 [2019-11-20 09:53:54,402 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/data/5058d70b6/3e336c85cd684681920163fa1bd32f76 [2019-11-20 09:53:54,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:53:54,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:53:54,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:53:54,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:53:54,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:53:54,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5051ad06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54, skipping insertion in model container [2019-11-20 09:53:54,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,424 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:53:54,466 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:53:54,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:53:54,802 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:53:54,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:53:54,927 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:53:54,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54 WrapperNode [2019-11-20 09:53:54,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:53:54,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:53:54,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:53:54,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:53:54,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:53:54,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:53:54,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:53:54,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:53:54,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:54,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:55,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... [2019-11-20 09:53:55,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:53:55,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:53:55,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:53:55,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:53:55,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/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 09:53:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:53:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 09:53:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:53:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:53:55,471 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:53:55,472 INFO L285 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-20 09:53:55,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:55 BoogieIcfgContainer [2019-11-20 09:53:55,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:53:55,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:53:55,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:53:55,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:53:55,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:53:54" (1/3) ... [2019-11-20 09:53:55,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50da30bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:53:55, skipping insertion in model container [2019-11-20 09:53:55,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:54" (2/3) ... [2019-11-20 09:53:55,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50da30bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:53:55, skipping insertion in model container [2019-11-20 09:53:55,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:55" (3/3) ... [2019-11-20 09:53:55,480 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2019-11-20 09:53:55,488 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:53:55,494 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-20 09:53:55,503 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-20 09:53:55,520 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:53:55,520 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:53:55,521 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:53:55,521 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:53:55,521 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:53:55,521 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:53:55,521 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:53:55,522 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:53:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-20 09:53:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 09:53:55,541 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:55,541 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 09:53:55,542 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:55,547 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-20 09:53:55,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:55,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543844230] [2019-11-20 09:53:55,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:55,683 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 09:53:55,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543844230] [2019-11-20 09:53:55,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:55,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:53:55,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855536283] [2019-11-20 09:53:55,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:53:55,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:55,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:53:55,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:53:55,703 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-11-20 09:53:55,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:55,744 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2019-11-20 09:53:55,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:53:55,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 09:53:55,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:55,754 INFO L225 Difference]: With dead ends: 85 [2019-11-20 09:53:55,754 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 09:53:55,757 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 09:53:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 09:53:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-20 09:53:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 09:53:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2019-11-20 09:53:55,790 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 4 [2019-11-20 09:53:55,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:55,790 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-11-20 09:53:55,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:53:55,790 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2019-11-20 09:53:55,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 09:53:55,791 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:55,791 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:55,792 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:55,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:55,792 INFO L82 PathProgramCache]: Analyzing trace with hash 170685048, now seen corresponding path program 1 times [2019-11-20 09:53:55,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:55,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320152202] [2019-11-20 09:53:55,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:55,887 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 09:53:55,888 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320152202] [2019-11-20 09:53:55,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:55,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 09:53:55,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455604623] [2019-11-20 09:53:55,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:53:55,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:55,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:53:55,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:53:55,891 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 5 states. [2019-11-20 09:53:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:55,986 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2019-11-20 09:53:55,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:53:55,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-20 09:53:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:55,988 INFO L225 Difference]: With dead ends: 64 [2019-11-20 09:53:55,988 INFO L226 Difference]: Without dead ends: 38 [2019-11-20 09:53:55,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 09:53:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-20 09:53:55,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2019-11-20 09:53:55,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 09:53:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-11-20 09:53:55,995 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 15 [2019-11-20 09:53:55,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:55,995 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-11-20 09:53:55,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:53:55,995 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-11-20 09:53:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 09:53:55,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:55,996 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:55,996 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:55,997 INFO L82 PathProgramCache]: Analyzing trace with hash 227943350, now seen corresponding path program 1 times [2019-11-20 09:53:55,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:55,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596827524] [2019-11-20 09:53:55,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:56,190 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 09:53:56,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596827524] [2019-11-20 09:53:56,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:56,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 09:53:56,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004597910] [2019-11-20 09:53:56,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 09:53:56,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:56,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 09:53:56,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 09:53:56,192 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 7 states. [2019-11-20 09:53:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:56,428 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2019-11-20 09:53:56,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:53:56,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-20 09:53:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:56,430 INFO L225 Difference]: With dead ends: 54 [2019-11-20 09:53:56,430 INFO L226 Difference]: Without dead ends: 52 [2019-11-20 09:53:56,431 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 09:53:56,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-20 09:53:56,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 34. [2019-11-20 09:53:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 09:53:56,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-11-20 09:53:56,437 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 15 [2019-11-20 09:53:56,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:56,437 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-11-20 09:53:56,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 09:53:56,438 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-11-20 09:53:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 09:53:56,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:56,439 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 09:53:56,439 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:56,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:56,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1186712674, now seen corresponding path program 1 times [2019-11-20 09:53:56,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:56,440 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752526672] [2019-11-20 09:53:56,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:56,532 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 09:53:56,532 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752526672] [2019-11-20 09:53:56,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:56,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 09:53:56,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010161235] [2019-11-20 09:53:56,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:53:56,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:56,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:53:56,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:53:56,534 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2019-11-20 09:53:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:56,586 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2019-11-20 09:53:56,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:53:56,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-20 09:53:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:56,587 INFO L225 Difference]: With dead ends: 63 [2019-11-20 09:53:56,587 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 09:53:56,588 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:53:56,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 09:53:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 09:53:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 09:53:56,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2019-11-20 09:53:56,596 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 19 [2019-11-20 09:53:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:56,597 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2019-11-20 09:53:56,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:53:56,597 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2019-11-20 09:53:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 09:53:56,598 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:56,599 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 09:53:56,600 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:56,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:56,600 INFO L82 PathProgramCache]: Analyzing trace with hash -93151004, now seen corresponding path program 1 times [2019-11-20 09:53:56,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:56,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879292945] [2019-11-20 09:53:56,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:56,802 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 09:53:56,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879292945] [2019-11-20 09:53:56,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:56,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-20 09:53:56,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399635549] [2019-11-20 09:53:56,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 09:53:56,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:56,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 09:53:56,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-11-20 09:53:56,804 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 12 states. [2019-11-20 09:53:57,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:57,210 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2019-11-20 09:53:57,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 09:53:57,212 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2019-11-20 09:53:57,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:57,212 INFO L225 Difference]: With dead ends: 50 [2019-11-20 09:53:57,213 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 09:53:57,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-11-20 09:53:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 09:53:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-20 09:53:57,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 09:53:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-20 09:53:57,219 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2019-11-20 09:53:57,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:57,219 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-20 09:53:57,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 09:53:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-20 09:53:57,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 09:53:57,220 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:57,220 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 09:53:57,226 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:57,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:57,226 INFO L82 PathProgramCache]: Analyzing trace with hash -93091422, now seen corresponding path program 1 times [2019-11-20 09:53:57,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:57,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094112490] [2019-11-20 09:53:57,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:57,397 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 09:53:57,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094112490] [2019-11-20 09:53:57,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:57,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 09:53:57,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960374158] [2019-11-20 09:53:57,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 09:53:57,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 09:53:57,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:53:57,399 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 8 states. [2019-11-20 09:53:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:57,613 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-11-20 09:53:57,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 09:53:57,617 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-11-20 09:53:57,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:57,618 INFO L225 Difference]: With dead ends: 54 [2019-11-20 09:53:57,618 INFO L226 Difference]: Without dead ends: 46 [2019-11-20 09:53:57,619 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-11-20 09:53:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-20 09:53:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2019-11-20 09:53:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 09:53:57,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2019-11-20 09:53:57,624 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 19 [2019-11-20 09:53:57,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:57,629 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2019-11-20 09:53:57,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 09:53:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2019-11-20 09:53:57,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 09:53:57,631 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:57,631 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 09:53:57,631 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:57,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:57,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1793070580, now seen corresponding path program 1 times [2019-11-20 09:53:57,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:57,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105143859] [2019-11-20 09:53:57,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:57,787 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 09:53:57,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105143859] [2019-11-20 09:53:57,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:57,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-20 09:53:57,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615983240] [2019-11-20 09:53:57,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 09:53:57,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:57,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 09:53:57,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-20 09:53:57,789 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 10 states. [2019-11-20 09:53:58,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:58,041 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2019-11-20 09:53:58,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 09:53:58,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-20 09:53:58,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:58,043 INFO L225 Difference]: With dead ends: 56 [2019-11-20 09:53:58,043 INFO L226 Difference]: Without dead ends: 48 [2019-11-20 09:53:58,043 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2019-11-20 09:53:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-20 09:53:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2019-11-20 09:53:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 09:53:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2019-11-20 09:53:58,049 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 25 [2019-11-20 09:53:58,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:58,049 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2019-11-20 09:53:58,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 09:53:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2019-11-20 09:53:58,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 09:53:58,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:58,050 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 09:53:58,050 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:58,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:58,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1793130162, now seen corresponding path program 1 times [2019-11-20 09:53:58,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:58,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497289424] [2019-11-20 09:53:58,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:58,198 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 09:53:58,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497289424] [2019-11-20 09:53:58,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:58,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-20 09:53:58,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729142808] [2019-11-20 09:53:58,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 09:53:58,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:58,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 09:53:58,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-11-20 09:53:58,200 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 14 states. [2019-11-20 09:53:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:58,611 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2019-11-20 09:53:58,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 09:53:58,612 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2019-11-20 09:53:58,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:58,612 INFO L225 Difference]: With dead ends: 55 [2019-11-20 09:53:58,613 INFO L226 Difference]: Without dead ends: 53 [2019-11-20 09:53:58,613 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2019-11-20 09:53:58,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-20 09:53:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2019-11-20 09:53:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-20 09:53:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-11-20 09:53:58,618 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 25 [2019-11-20 09:53:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:58,618 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-11-20 09:53:58,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 09:53:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-11-20 09:53:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 09:53:58,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:58,619 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 09:53:58,619 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1850388464, now seen corresponding path program 1 times [2019-11-20 09:53:58,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:58,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012259930] [2019-11-20 09:53:58,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:58,667 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 09:53:58,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012259930] [2019-11-20 09:53:58,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:58,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 09:53:58,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767606577] [2019-11-20 09:53:58,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:53:58,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:58,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:53:58,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:53:58,668 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2019-11-20 09:53:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:58,740 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2019-11-20 09:53:58,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 09:53:58,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 09:53:58,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:58,745 INFO L225 Difference]: With dead ends: 46 [2019-11-20 09:53:58,745 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 09:53:58,745 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-20 09:53:58,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 09:53:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-20 09:53:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 09:53:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2019-11-20 09:53:58,750 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 25 [2019-11-20 09:53:58,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:58,751 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2019-11-20 09:53:58,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:53:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2019-11-20 09:53:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 09:53:58,752 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:58,752 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 09:53:58,752 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:58,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:58,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1400103152, now seen corresponding path program 1 times [2019-11-20 09:53:58,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:58,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353119262] [2019-11-20 09:53:58,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:58,873 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 09:53:58,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353119262] [2019-11-20 09:53:58,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:58,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-20 09:53:58,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927483957] [2019-11-20 09:53:58,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 09:53:58,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:58,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 09:53:58,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:53:58,874 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 13 states. [2019-11-20 09:53:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:59,300 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2019-11-20 09:53:59,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 09:53:59,301 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2019-11-20 09:53:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:59,301 INFO L225 Difference]: With dead ends: 50 [2019-11-20 09:53:59,302 INFO L226 Difference]: Without dead ends: 48 [2019-11-20 09:53:59,302 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2019-11-20 09:53:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-20 09:53:59,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2019-11-20 09:53:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 09:53:59,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2019-11-20 09:53:59,306 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 25 [2019-11-20 09:53:59,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:59,306 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2019-11-20 09:53:59,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 09:53:59,307 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2019-11-20 09:53:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 09:53:59,307 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:59,307 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:59,308 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:59,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash 758876958, now seen corresponding path program 1 times [2019-11-20 09:53:59,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:59,308 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862157049] [2019-11-20 09:53:59,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:59,406 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 09:53:59,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862157049] [2019-11-20 09:53:59,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:59,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 09:53:59,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187165892] [2019-11-20 09:53:59,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 09:53:59,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:59,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 09:53:59,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-20 09:53:59,408 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 9 states. [2019-11-20 09:53:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:59,539 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-11-20 09:53:59,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 09:53:59,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-11-20 09:53:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:59,540 INFO L225 Difference]: With dead ends: 44 [2019-11-20 09:53:59,540 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 09:53:59,541 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2019-11-20 09:53:59,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 09:53:59,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2019-11-20 09:53:59,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 09:53:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-11-20 09:53:59,544 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 29 [2019-11-20 09:53:59,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:59,544 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-11-20 09:53:59,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 09:53:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-11-20 09:53:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 09:53:59,545 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:59,545 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:59,545 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:59,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:59,546 INFO L82 PathProgramCache]: Analyzing trace with hash -50469668, now seen corresponding path program 1 times [2019-11-20 09:53:59,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:59,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741470120] [2019-11-20 09:53:59,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:53:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:53:59,596 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:53:59,596 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 09:53:59,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:53:59 BoogieIcfgContainer [2019-11-20 09:53:59,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:53:59,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:53:59,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:53:59,642 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:53:59,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:55" (3/4) ... [2019-11-20 09:53:59,644 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 09:53:59,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39b56fab-baf4-408a-a471-90f7d1717f80/bin/uautomizer/witness.graphml [2019-11-20 09:53:59,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:53:59,707 INFO L168 Benchmark]: Toolchain (without parser) took 5302.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 948.6 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:59,707 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:53:59,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:59,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:59,708 INFO L168 Benchmark]: Boogie Preprocessor took 25.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:59,709 INFO L168 Benchmark]: RCFGBuilder took 468.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:59,709 INFO L168 Benchmark]: TraceAbstraction took 4167.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -36.1 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:59,709 INFO L168 Benchmark]: Witness Printer took 64.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:59,711 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 520.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 468.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4167.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -36.1 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Witness Printer took 64.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L867] void * guard_malloc_counter = 0; [L887] struct list_head *elem = ((void *)0); [L900] static struct list_head head; VAL [elem={0:0}, guard_malloc_counter={0:0}, head={3:0}] [L903] struct list_head *dev1, *dev2; [L871] (size > 0) ? (0) : __blast_assert () VAL [elem={0:0}, guard_malloc_counter={0:0}, head={3:0}] [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; VAL [elem={0:0}, guard_malloc_counter={0:1}, head={3:0}] [L879] return __getMemory(size); [L904] dev1 = my_malloc(sizeof(*dev1)) [L871] (size > 0) ? (0) : __blast_assert () VAL [elem={0:0}, guard_malloc_counter={0:1}, head={3:0}] [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; VAL [elem={0:0}, guard_malloc_counter={0:2}, head={3:0}] [L879] return __getMemory(size); [L905] dev2 = my_malloc(sizeof(*dev2)) [L906] COND TRUE dev1!=((void *)0) && dev2!=((void *)0) [L890] (new!=elem) ? (0) : __blast_assert () VAL [elem={0:0}, guard_malloc_counter={0:2}, head={3:0}] [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new VAL [elem={0:2}, guard_malloc_counter={0:2}, head={3:0}] [L890] (new!=elem) ? (0) : __blast_assert () VAL [elem={0:2}, guard_malloc_counter={0:2}, head={3:0}] [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new VAL [elem={0:1}, guard_malloc_counter={0:2}, head={3:0}] [L896] COND FALSE !(entry==elem) VAL [elem={0:1}, guard_malloc_counter={0:2}, head={3:0}] [L890] (new!=elem) ? (0) : __blast_assert () VAL [elem={0:1}, guard_malloc_counter={0:2}, head={3:0}] [L891] COND FALSE !(__VERIFIER_nondet_int()) [L890] (new!=elem) ? (0) : __blast_assert () VAL [elem={0:1}, guard_malloc_counter={0:2}, head={3:0}] [L6] __VERIFIER_error() VAL [elem={0:1}, guard_malloc_counter={0:2}, head={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 6 error locations. Result: UNSAFE, OverallTime: 4.1s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 316 SDtfs, 1037 SDslu, 725 SDs, 0 SdLazy, 1052 SolverSat, 191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, 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, 11 MinimizatonAttempts, 55 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 19201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...