./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4892275a211cad54ffe3d940980c258aec58e47d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:41,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:41,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:41,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:41,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:41,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:41,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:41,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:41,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:41,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:41,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:41,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:41,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:41,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:41,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:41,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:41,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:41,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:41,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:41,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:41,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:41,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:41,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:41,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:41,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:41,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:41,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:41,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:41,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:41,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:41,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:41,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:41,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:41,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:41,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:41,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:41,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:41,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:41,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:41,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:41,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:41,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:41,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:41,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:41,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:41,239 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:41,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:41,240 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:41,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:41,240 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:41,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:41,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:41,240 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:41,241 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:41,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:41,242 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:41,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:41,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:41,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:41,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:41,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:41,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:41,243 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:41,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:41,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:41,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:41,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:41,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:41,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:41,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:41,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:41,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:41,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:41,245 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:41,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:41,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:41,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:41,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan 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 -> Taipan 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 -> 4892275a211cad54ffe3d940980c258aec58e47d [2019-10-22 11:26:41,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:41,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:41,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:41,292 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:41,293 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:41,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/../../sv-benchmarks/c/locks/test_locks_15-1.c [2019-10-22 11:26:41,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/data/22ff6509d/18f5bb83bc824796a4eff83623198131/FLAG6805eb571 [2019-10-22 11:26:41,743 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:41,743 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/sv-benchmarks/c/locks/test_locks_15-1.c [2019-10-22 11:26:41,750 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/data/22ff6509d/18f5bb83bc824796a4eff83623198131/FLAG6805eb571 [2019-10-22 11:26:41,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/data/22ff6509d/18f5bb83bc824796a4eff83623198131 [2019-10-22 11:26:41,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:41,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:41,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:41,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:41,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:41,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:41" (1/1) ... [2019-10-22 11:26:41,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134bd60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:41, skipping insertion in model container [2019-10-22 11:26:41,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:41" (1/1) ... [2019-10-22 11:26:41,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:41,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:41,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:41,999 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:42,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:42,043 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:42,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42 WrapperNode [2019-10-22 11:26:42,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:42,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:42,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:42,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:42,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:42,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:42,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:42,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:42,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... [2019-10-22 11:26:42,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:42,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:42,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:42,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:42,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/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 [2019-10-22 11:26:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:42,470 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:42,471 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:26:42,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:42 BoogieIcfgContainer [2019-10-22 11:26:42,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:42,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:42,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:42,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:42,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:41" (1/3) ... [2019-10-22 11:26:42,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1f0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:42, skipping insertion in model container [2019-10-22 11:26:42,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:42" (2/3) ... [2019-10-22 11:26:42,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1f0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:42, skipping insertion in model container [2019-10-22 11:26:42,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:42" (3/3) ... [2019-10-22 11:26:42,478 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2019-10-22 11:26:42,485 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:42,490 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:26:42,499 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:26:42,518 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:42,518 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:42,518 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:42,518 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:42,518 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:42,518 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:42,519 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:42,519 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:42,531 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-10-22 11:26:42,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:26:42,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:42,536 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:42,538 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:42,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:42,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1323184238, now seen corresponding path program 1 times [2019-10-22 11:26:42,549 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:42,557 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948417277] [2019-10-22 11:26:42,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:42,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:42,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:42,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948417277] [2019-10-22 11:26:42,759 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:42,759 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:42,759 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861732085] [2019-10-22 11:26:42,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:42,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:42,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:42,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:42,781 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-10-22 11:26:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:42,854 INFO L93 Difference]: Finished difference Result 159 states and 299 transitions. [2019-10-22 11:26:42,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:42,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:26:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:42,868 INFO L225 Difference]: With dead ends: 159 [2019-10-22 11:26:42,870 INFO L226 Difference]: Without dead ends: 98 [2019-10-22 11:26:42,873 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-10-22 11:26:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2019-10-22 11:26:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-10-22 11:26:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 182 transitions. [2019-10-22 11:26:42,920 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 182 transitions. Word has length 21 [2019-10-22 11:26:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:42,920 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 182 transitions. [2019-10-22 11:26:42,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 182 transitions. [2019-10-22 11:26:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:26:42,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:42,924 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:42,925 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:42,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1323177046, now seen corresponding path program 1 times [2019-10-22 11:26:42,925 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:42,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624737965] [2019-10-22 11:26:42,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:42,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:42,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:43,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624737965] [2019-10-22 11:26:43,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:43,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:43,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874538170] [2019-10-22 11:26:43,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:43,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:43,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:43,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:43,018 INFO L87 Difference]: Start difference. First operand 96 states and 182 transitions. Second operand 3 states. [2019-10-22 11:26:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:43,048 INFO L93 Difference]: Finished difference Result 99 states and 185 transitions. [2019-10-22 11:26:43,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:43,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:26:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:43,051 INFO L225 Difference]: With dead ends: 99 [2019-10-22 11:26:43,051 INFO L226 Difference]: Without dead ends: 97 [2019-10-22 11:26:43,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:43,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-10-22 11:26:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-10-22 11:26:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-10-22 11:26:43,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2019-10-22 11:26:43,060 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 21 [2019-10-22 11:26:43,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:43,060 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2019-10-22 11:26:43,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2019-10-22 11:26:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:26:43,061 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:43,061 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:43,061 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:43,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:43,062 INFO L82 PathProgramCache]: Analyzing trace with hash -670960468, now seen corresponding path program 1 times [2019-10-22 11:26:43,062 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:43,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856100246] [2019-10-22 11:26:43,062 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:43,062 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:43,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:43,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856100246] [2019-10-22 11:26:43,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:43,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:43,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101911778] [2019-10-22 11:26:43,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:43,121 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:43,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:43,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:43,122 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand 3 states. [2019-10-22 11:26:43,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:43,141 INFO L93 Difference]: Finished difference Result 232 states and 436 transitions. [2019-10-22 11:26:43,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:43,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:26:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:43,142 INFO L225 Difference]: With dead ends: 232 [2019-10-22 11:26:43,142 INFO L226 Difference]: Without dead ends: 136 [2019-10-22 11:26:43,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:43,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-22 11:26:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2019-10-22 11:26:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-22 11:26:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 249 transitions. [2019-10-22 11:26:43,153 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 249 transitions. Word has length 21 [2019-10-22 11:26:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:43,153 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 249 transitions. [2019-10-22 11:26:43,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 249 transitions. [2019-10-22 11:26:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:26:43,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:43,154 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:43,154 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:43,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:43,155 INFO L82 PathProgramCache]: Analyzing trace with hash -670967660, now seen corresponding path program 1 times [2019-10-22 11:26:43,155 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:43,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842077925] [2019-10-22 11:26:43,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:43,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:43,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:43,188 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842077925] [2019-10-22 11:26:43,188 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:43,188 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:43,189 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005258007] [2019-10-22 11:26:43,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:43,189 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:43,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:43,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:43,190 INFO L87 Difference]: Start difference. First operand 134 states and 249 transitions. Second operand 3 states. [2019-10-22 11:26:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:43,205 INFO L93 Difference]: Finished difference Result 186 states and 340 transitions. [2019-10-22 11:26:43,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:43,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:26:43,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:43,207 INFO L225 Difference]: With dead ends: 186 [2019-10-22 11:26:43,207 INFO L226 Difference]: Without dead ends: 134 [2019-10-22 11:26:43,208 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-22 11:26:43,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2019-10-22 11:26:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 11:26:43,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 242 transitions. [2019-10-22 11:26:43,216 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 242 transitions. Word has length 21 [2019-10-22 11:26:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:43,216 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 242 transitions. [2019-10-22 11:26:43,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:43,216 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 242 transitions. [2019-10-22 11:26:43,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:26:43,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:43,217 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:43,218 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:43,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:43,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2035658926, now seen corresponding path program 1 times [2019-10-22 11:26:43,218 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:43,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968375812] [2019-10-22 11:26:43,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:43,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:43,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:43,278 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:26:43,278 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:26:43,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:43 BoogieIcfgContainer [2019-10-22 11:26:43,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:43,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:43,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:43,304 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:43,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:42" (3/4) ... [2019-10-22 11:26:43,307 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:26:43,365 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_418dffe9-0c14-4fab-ae99-e68766822b44/bin/utaipan/witness.graphml [2019-10-22 11:26:43,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:43,371 INFO L168 Benchmark]: Toolchain (without parser) took 1604.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -107.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:43,371 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:43,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 947.1 MB in the beginning and 1.2 GB in the end (delta: -206.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:43,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.63 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:43,372 INFO L168 Benchmark]: Boogie Preprocessor took 41.19 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:43,373 INFO L168 Benchmark]: RCFGBuilder took 342.49 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:43,373 INFO L168 Benchmark]: TraceAbstraction took 830.92 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: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:43,374 INFO L168 Benchmark]: Witness Printer took 65.16 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:43,376 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 947.1 MB in the beginning and 1.2 GB in the end (delta: -206.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.63 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.19 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 342.49 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 830.92 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: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. * Witness Printer took 65.16 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 231]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L48] int p15 = __VERIFIER_nondet_int(); [L49] int lk15; [L52] int cond; [L54] COND TRUE 1 [L55] cond = __VERIFIER_nondet_int() [L56] COND FALSE !(cond == 0) [L59] lk1 = 0 [L61] lk2 = 0 [L63] lk3 = 0 [L65] lk4 = 0 [L67] lk5 = 0 [L69] lk6 = 0 [L71] lk7 = 0 [L73] lk8 = 0 [L75] lk9 = 0 [L77] lk10 = 0 [L79] lk11 = 0 [L81] lk12 = 0 [L83] lk13 = 0 [L85] lk14 = 0 [L87] lk15 = 0 [L91] COND FALSE !(p1 != 0) [L95] COND FALSE !(p2 != 0) [L99] COND FALSE !(p3 != 0) [L103] COND TRUE p4 != 0 [L104] lk4 = 1 [L107] COND TRUE p5 != 0 [L108] lk5 = 1 [L111] COND TRUE p6 != 0 [L112] lk6 = 1 [L115] COND TRUE p7 != 0 [L116] lk7 = 1 [L119] COND TRUE p8 != 0 [L120] lk8 = 1 [L123] COND TRUE p9 != 0 [L124] lk9 = 1 [L127] COND TRUE p10 != 0 [L128] lk10 = 1 [L131] COND FALSE !(p11 != 0) [L135] COND TRUE p12 != 0 [L136] lk12 = 1 [L139] COND TRUE p13 != 0 [L140] lk13 = 1 [L143] COND TRUE p14 != 0 [L144] lk14 = 1 [L147] COND TRUE p15 != 0 [L148] lk15 = 1 [L153] COND FALSE !(p1 != 0) [L158] COND FALSE !(p2 != 0) [L231] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 471 SDtfs, 244 SDslu, 303 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 4640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...