./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/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 2e9d0e89ee237165e6cd15cb730148b321ca31eb .................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/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 2e9d0e89ee237165e6cd15cb730148b321ca31eb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:40:48,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:40:48,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:40:48,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:40:48,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:40:48,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:40:48,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:40:48,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:40:48,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:40:48,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:40:48,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:40:48,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:40:48,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:40:48,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:40:48,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:40:48,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:40:48,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:40:48,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:40:48,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:40:48,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:40:48,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:40:48,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:40:48,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:40:48,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:40:48,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:40:48,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:40:48,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:40:48,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:40:48,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:40:48,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:40:48,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:40:48,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:40:48,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:40:48,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:40:48,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:40:48,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:40:48,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:40:48,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:40:48,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:40:48,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:40:48,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:40:48,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:40:48,622 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:40:48,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:40:48,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:40:48,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:40:48,623 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:40:48,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:40:48,623 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:40:48,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:40:48,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:40:48,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:40:48,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:40:48,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:40:48,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:40:48,624 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:40:48,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:40:48,625 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:40:48,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:40:48,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:40:48,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:40:48,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:40:48,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:40:48,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:40:48,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:40:48,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:40:48,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:40:48,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:40:48,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:40:48,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:40:48,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:40:48,626 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_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/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 -> 2e9d0e89ee237165e6cd15cb730148b321ca31eb [2019-12-07 18:40:48,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:40:48,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:40:48,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:40:48,734 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:40:48,734 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:40:48,735 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-12-07 18:40:48,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/c1ed8e0ca/6919e335303648fd8727ffb544e855a2/FLAGbd42363da [2019-12-07 18:40:49,086 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:40:49,086 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/sv-benchmarks/c/verifythis/elimination_max.c [2019-12-07 18:40:49,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/c1ed8e0ca/6919e335303648fd8727ffb544e855a2/FLAGbd42363da [2019-12-07 18:40:49,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/c1ed8e0ca/6919e335303648fd8727ffb544e855a2 [2019-12-07 18:40:49,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:40:49,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:40:49,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:40:49,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:40:49,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:40:49,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50530b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49, skipping insertion in model container [2019-12-07 18:40:49,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:40:49,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:40:49,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:40:49,287 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:40:49,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:40:49,314 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:40:49,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49 WrapperNode [2019-12-07 18:40:49,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:40:49,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:40:49,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:40:49,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:40:49,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:40:49,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:40:49,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:40:49,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:40:49,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... [2019-12-07 18:40:49,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:40:49,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:40:49,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:40:49,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:40:49,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/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 [2019-12-07 18:40:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:40:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:40:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:40:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:40:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:40:49,560 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:40:49,560 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 18:40:49,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:40:49 BoogieIcfgContainer [2019-12-07 18:40:49,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:40:49,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:40:49,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:40:49,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:40:49,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:40:49" (1/3) ... [2019-12-07 18:40:49,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b3f524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:40:49, skipping insertion in model container [2019-12-07 18:40:49,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:49" (2/3) ... [2019-12-07 18:40:49,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b3f524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:40:49, skipping insertion in model container [2019-12-07 18:40:49,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:40:49" (3/3) ... [2019-12-07 18:40:49,565 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-12-07 18:40:49,572 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:40:49,576 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 18:40:49,583 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 18:40:49,598 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:40:49,598 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:40:49,598 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:40:49,598 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:40:49,598 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:40:49,598 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:40:49,598 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:40:49,599 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:40:49,608 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 18:40:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:40:49,612 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:49,612 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:49,612 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:49,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-12-07 18:40:49,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:49,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038404275] [2019-12-07 18:40:49,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:49,717 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038404275] [2019-12-07 18:40:49,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:49,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:40:49,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059785947] [2019-12-07 18:40:49,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:40:49,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:49,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:40:49,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:40:49,731 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-12-07 18:40:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:49,742 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-12-07 18:40:49,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:40:49,743 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-12-07 18:40:49,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:49,748 INFO L225 Difference]: With dead ends: 35 [2019-12-07 18:40:49,748 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 18:40:49,750 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:40:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 18:40:49,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 18:40:49,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 18:40:49,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-12-07 18:40:49,772 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-12-07 18:40:49,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:49,772 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-12-07 18:40:49,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:40:49,772 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-12-07 18:40:49,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:40:49,772 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:49,773 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:49,773 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:49,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:49,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-12-07 18:40:49,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:49,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218884574] [2019-12-07 18:40:49,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:49,821 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (const Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1315) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1196) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.TermTransferrer.convertApplicationTerm(TermTransferrer.java:182) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:573) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:171) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:202) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-12-07 18:40:49,824 INFO L168 Benchmark]: Toolchain (without parser) took 722.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -99.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:40:49,825 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:40:49,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:49,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:40:49,826 INFO L168 Benchmark]: Boogie Preprocessor took 16.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:49,826 INFO L168 Benchmark]: RCFGBuilder took 202.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:49,827 INFO L168 Benchmark]: TraceAbstraction took 261.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:49,829 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 202.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 261.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (const Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (const Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 18:40:51,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:40:51,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:40:51,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:40:51,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:40:51,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:40:51,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:40:51,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:40:51,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:40:51,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:40:51,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:40:51,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:40:51,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:40:51,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:40:51,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:40:51,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:40:51,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:40:51,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:40:51,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:40:51,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:40:51,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:40:51,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:40:51,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:40:51,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:40:51,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:40:51,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:40:51,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:40:51,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:40:51,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:40:51,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:40:51,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:40:51,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:40:51,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:40:51,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:40:51,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:40:51,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:40:51,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:40:51,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:40:51,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:40:51,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:40:51,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:40:51,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:40:51,219 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:40:51,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:40:51,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:40:51,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:40:51,221 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:40:51,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:40:51,221 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:40:51,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:40:51,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:40:51,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:40:51,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:40:51,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:40:51,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:40:51,223 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:40:51,223 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:40:51,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:40:51,223 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:40:51,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:40:51,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:40:51,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:40:51,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:40:51,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:40:51,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:40:51,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:40:51,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:40:51,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:40:51,225 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:40:51,225 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:40:51,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:40:51,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:40:51,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:40:51,226 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/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 -> 2e9d0e89ee237165e6cd15cb730148b321ca31eb [2019-12-07 18:40:51,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:40:51,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:40:51,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:40:51,408 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:40:51,409 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:40:51,409 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-12-07 18:40:51,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/247618102/201f77f6f0244f9fbcbd6945eb87da24/FLAG8d24a0ae2 [2019-12-07 18:40:51,854 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:40:51,854 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/sv-benchmarks/c/verifythis/elimination_max.c [2019-12-07 18:40:51,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/247618102/201f77f6f0244f9fbcbd6945eb87da24/FLAG8d24a0ae2 [2019-12-07 18:40:52,228 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/data/247618102/201f77f6f0244f9fbcbd6945eb87da24 [2019-12-07 18:40:52,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:40:52,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:40:52,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:40:52,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:40:52,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:40:52,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8ffd2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52, skipping insertion in model container [2019-12-07 18:40:52,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:40:52,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:40:52,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:40:52,367 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:40:52,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:40:52,390 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:40:52,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52 WrapperNode [2019-12-07 18:40:52,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:40:52,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:40:52,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:40:52,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:40:52,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:40:52,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:40:52,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:40:52,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:40:52,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... [2019-12-07 18:40:52,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:40:52,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:40:52,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:40:52,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:40:52,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/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 [2019-12-07 18:40:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:40:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:40:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:40:52,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:40:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:40:52,669 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:40:52,669 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 18:40:52,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:40:52 BoogieIcfgContainer [2019-12-07 18:40:52,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:40:52,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:40:52,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:40:52,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:40:52,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:40:52" (1/3) ... [2019-12-07 18:40:52,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102776fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:40:52, skipping insertion in model container [2019-12-07 18:40:52,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:52" (2/3) ... [2019-12-07 18:40:52,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102776fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:40:52, skipping insertion in model container [2019-12-07 18:40:52,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:40:52" (3/3) ... [2019-12-07 18:40:52,675 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-12-07 18:40:52,681 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:40:52,684 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 18:40:52,692 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 18:40:52,708 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:40:52,708 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:40:52,709 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:40:52,709 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:40:52,709 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:40:52,709 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:40:52,709 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:40:52,709 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:40:52,718 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 18:40:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:40:52,722 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:52,722 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:52,723 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:52,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:52,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-12-07 18:40:52,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:40:52,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331625778] [2019-12-07 18:40:52,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 18:40:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:52,779 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:40:52,782 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:52,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:52,791 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:40:52,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:52,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331625778] [2019-12-07 18:40:52,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:52,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:40:52,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558103013] [2019-12-07 18:40:52,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:40:52,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:40:52,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:40:52,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:40:52,808 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-12-07 18:40:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:52,819 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-12-07 18:40:52,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:40:52,819 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-12-07 18:40:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:52,825 INFO L225 Difference]: With dead ends: 35 [2019-12-07 18:40:52,825 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 18:40:52,827 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:40:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 18:40:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 18:40:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 18:40:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-12-07 18:40:52,849 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-12-07 18:40:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:52,849 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-12-07 18:40:52,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:40:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-12-07 18:40:52,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:40:52,849 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:52,849 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:53,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:40:53,051 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:53,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-12-07 18:40:53,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:40:53,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359111920] [2019-12-07 18:40:53,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 18:40:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:53,133 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 18:40:53,135 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:53,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:53,256 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:40:53,306 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:40:53,307 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2019-12-07 18:40:53,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:53,310 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:40:53,319 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:40:53,320 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 18:40:53,321 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:20 [2019-12-07 18:40:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:53,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359111920] [2019-12-07 18:40:53,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:53,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-12-07 18:40:53,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566801663] [2019-12-07 18:40:53,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:40:53,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:40:53,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:40:53,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:40:53,388 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 9 states. [2019-12-07 18:40:53,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:53,772 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-12-07 18:40:53,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:40:53,773 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2019-12-07 18:40:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:53,775 INFO L225 Difference]: With dead ends: 30 [2019-12-07 18:40:53,775 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 18:40:53,776 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2019-12-07 18:40:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 18:40:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 19. [2019-12-07 18:40:53,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:40:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-12-07 18:40:53,781 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2019-12-07 18:40:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:53,781 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-12-07 18:40:53,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:40:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-12-07 18:40:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 18:40:53,782 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:53,782 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:53,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:40:53,983 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:53,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:53,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1363506767, now seen corresponding path program 1 times [2019-12-07 18:40:53,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:40:53,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535503574] [2019-12-07 18:40:53,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 18:40:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:54,073 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 18:40:54,074 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:54,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:54,334 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:40:54,683 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-12-07 18:40:54,684 INFO L343 Elim1Store]: treesize reduction 17, result has 83.0 percent of original size [2019-12-07 18:40:54,685 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 90 [2019-12-07 18:40:54,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,709 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:54,730 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-12-07 18:40:54,876 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 25 [2019-12-07 18:40:54,877 INFO L614 ElimStorePlain]: treesize reduction 235, result has 14.9 percent of original size [2019-12-07 18:40:54,878 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 18:40:54,878 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:41 [2019-12-07 18:40:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:54,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535503574] [2019-12-07 18:40:54,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:40:54,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2019-12-07 18:40:54,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065460351] [2019-12-07 18:40:54,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 18:40:54,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:40:54,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 18:40:54,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:40:54,974 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 13 states. [2019-12-07 18:40:58,671 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 33 [2019-12-07 18:40:58,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:58,712 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2019-12-07 18:40:58,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-07 18:40:58,713 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-12-07 18:40:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:58,714 INFO L225 Difference]: With dead ends: 51 [2019-12-07 18:40:58,714 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 18:40:58,715 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2019-12-07 18:40:58,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 18:40:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 23. [2019-12-07 18:40:58,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 18:40:58,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 18:40:58,719 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 9 [2019-12-07 18:40:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:58,720 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 18:40:58,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 18:40:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-12-07 18:40:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:40:58,720 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:58,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:58,921 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:40:58,921 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:58,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:58,922 INFO L82 PathProgramCache]: Analyzing trace with hash -875811110, now seen corresponding path program 1 times [2019-12-07 18:40:58,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:40:58,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974039964] [2019-12-07 18:40:58,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 18:40:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:58,986 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:40:58,987 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:59,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:59,002 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:40:59,017 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:40:59,018 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2019-12-07 18:40:59,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:59,020 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:40:59,023 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:40:59,023 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 18:40:59,023 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:11 [2019-12-07 18:40:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:59,041 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974039964] [2019-12-07 18:40:59,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:59,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:40:59,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290153255] [2019-12-07 18:40:59,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:40:59,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:40:59,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:40:59,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:40:59,042 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand 8 states. [2019-12-07 18:40:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:59,191 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2019-12-07 18:40:59,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:40:59,192 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-12-07 18:40:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:59,193 INFO L225 Difference]: With dead ends: 46 [2019-12-07 18:40:59,193 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 18:40:59,194 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:40:59,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 18:40:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2019-12-07 18:40:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 18:40:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-12-07 18:40:59,199 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 10 [2019-12-07 18:40:59,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:59,199 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-12-07 18:40:59,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:40:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-12-07 18:40:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:40:59,199 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:59,200 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:59,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:40:59,401 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:59,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:59,401 INFO L82 PathProgramCache]: Analyzing trace with hash -312786986, now seen corresponding path program 1 times [2019-12-07 18:40:59,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:40:59,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897045349] [2019-12-07 18:40:59,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 18:40:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:59,494 WARN L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 22 conjunts are in the unsatisfiable core [2019-12-07 18:40:59,495 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:59,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:40:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:59,967 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:41:00,856 INFO L343 Elim1Store]: treesize reduction 17, result has 83.0 percent of original size [2019-12-07 18:41:00,857 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 93 [2019-12-07 18:41:00,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:00,892 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:41:01,035 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2019-12-07 18:41:01,035 INFO L614 ElimStorePlain]: treesize reduction 12, result has 83.3 percent of original size [2019-12-07 18:41:01,036 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 18:41:01,036 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:86, output treesize:60 [2019-12-07 18:41:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:41:01,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897045349] [2019-12-07 18:41:01,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:41:01,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2019-12-07 18:41:01,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108709662] [2019-12-07 18:41:01,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 18:41:01,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:41:01,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 18:41:01,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2019-12-07 18:41:01,185 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 17 states. [2019-12-07 18:41:01,593 WARN L192 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-12-07 18:41:04,066 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-12-07 18:41:04,517 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2019-12-07 18:41:04,881 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2019-12-07 18:41:05,377 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-12-07 18:41:05,764 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-12-07 18:41:08,214 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-12-07 18:41:08,955 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-12-07 18:41:09,445 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2019-12-07 18:41:10,188 WARN L192 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-12-07 18:41:10,612 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-12-07 18:41:10,922 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 40 [2019-12-07 18:41:11,766 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-12-07 18:41:12,068 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-12-07 18:41:12,488 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 40 [2019-12-07 18:41:12,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:12,522 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2019-12-07 18:41:12,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 18:41:12,523 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 11 [2019-12-07 18:41:12,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:12,524 INFO L225 Difference]: With dead ends: 87 [2019-12-07 18:41:12,524 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 18:41:12,525 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2019-12-07 18:41:12,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 18:41:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 40. [2019-12-07 18:41:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-07 18:41:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2019-12-07 18:41:12,532 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 58 transitions. Word has length 11 [2019-12-07 18:41:12,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:12,532 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 58 transitions. [2019-12-07 18:41:12,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 18:41:12,532 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2019-12-07 18:41:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:41:12,533 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:41:12,533 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:41:12,734 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 18:41:12,735 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:41:12,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:41:12,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1460373334, now seen corresponding path program 2 times [2019-12-07 18:41:12,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:41:12,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698409256] [2019-12-07 18:41:12,737 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7dd1878-a2d8-4a4c-a267-0dae03e8a1c5/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 18:41:12,796 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 18:41:12,796 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:41:12,799 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:41:12,800 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:41:12,809 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2019-12-07 18:41:12,809 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:41:12,813 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:41:12,813 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:41:12,814 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2019-12-07 18:41:12,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:41:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 18:41:12,836 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:41:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 18:41:22,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698409256] [2019-12-07 18:41:22,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:41:22,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:41:22,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466572010] [2019-12-07 18:41:22,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:41:22,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:41:22,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:41:22,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=35, Unknown=5, NotChecked=0, Total=56 [2019-12-07 18:41:22,932 INFO L87 Difference]: Start difference. First operand 40 states and 58 transitions. Second operand 8 states. [2019-12-07 18:41:27,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:41:27,007 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2019-12-07 18:41:27,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:41:27,008 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-12-07 18:41:27,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:41:27,008 INFO L225 Difference]: With dead ends: 40 [2019-12-07 18:41:27,008 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:41:27,009 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=31, Invalid=52, Unknown=7, NotChecked=0, Total=90 [2019-12-07 18:41:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:41:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:41:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:41:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:41:27,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 18:41:27,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:41:27,010 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:41:27,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:41:27,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:41:27,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:41:27,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 18:41:27,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:41:27,344 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2019-12-07 18:41:30,541 WARN L192 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 140 DAG size of output: 48 [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L242 CegarLoopResult]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (or (forall ((v_ULTIMATE.start_main_~i~0_15 (_ BitVec 32))) (let ((.cse1 (bvmul ULTIMATE.start_main_~x~0 (_ bv4 32))) (.cse2 (bvmul v_ULTIMATE.start_main_~i~0_15 (_ bv4 32)))) (or (= .cse1 .cse2) (= (bvadd .cse2 (_ bv4294967292 32)) .cse1) (= (bvmul ULTIMATE.start_main_~y~0 (_ bv4 32)) .cse2) (not (bvslt v_ULTIMATE.start_main_~i~0_15 ULTIMATE.start_main_~n~0)) (not (bvsle (_ bv0 32) v_ULTIMATE.start_main_~i~0_15))))) (bvslt (bvadd ULTIMATE.start_main_~x~0 (_ bv1 32)) (bvadd ULTIMATE.start_main_~y~0 (_ bv4294967295 32))) (not (bvslt ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= |ULTIMATE.start_main_#t~malloc3.offset| (_ bv0 32)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc3.base|) .cse0))) [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-12-07 18:41:30,555 INFO L246 CegarLoopResult]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L249 CegarLoopResult]: At program point L45(lines 11 46) the Hoare annotation is: true [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L242 CegarLoopResult]: At program point L30-2(lines 20 32) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= |ULTIMATE.start_main_#t~malloc3.offset| (_ bv0 32)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc3.base|) .cse0))) [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-12-07 18:41:30,556 INFO L246 CegarLoopResult]: For program point L6-4(line 6) no Hoare annotation was computed. [2019-12-07 18:41:30,560 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:258) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-12-07 18:41:30,562 INFO L168 Benchmark]: Toolchain (without parser) took 38330.00 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 276.8 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -284.7 MB). Peak memory consumption was 356.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:41:30,562 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:41:30,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.14 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:41:30,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:41:30,563 INFO L168 Benchmark]: Boogie Preprocessor took 19.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:41:30,563 INFO L168 Benchmark]: RCFGBuilder took 206.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:41:30,564 INFO L168 Benchmark]: TraceAbstraction took 37890.06 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -154.7 MB). Peak memory consumption was 370.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:41:30,566 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.14 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 206.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 37890.06 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -154.7 MB). Peak memory consumption was 370.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...