./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test23-1.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_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test23-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 b974f281a213c0803f91ef44d205e442fb2a5f8f .................................................................................................................................................................................................................................................................................... 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_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test23-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 b974f281a213c0803f91ef44d205e442fb2a5f8f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:47:09,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:47:09,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:47:09,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:47:09,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:47:09,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:47:09,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:47:09,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:47:09,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:47:09,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:47:09,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:47:09,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:47:09,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:47:09,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:47:09,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:47:09,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:47:09,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:47:09,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:47:09,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:47:09,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:47:09,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:47:09,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:47:09,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:47:09,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:47:09,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:47:09,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:47:09,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:47:09,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:47:09,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:47:09,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:47:09,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:47:09,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:47:09,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:47:09,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:47:09,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:47:09,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:47:09,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:47:09,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:47:09,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:47:09,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:47:09,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:47:09,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:47:09,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:47:09,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:47:09,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:47:09,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:47:09,587 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:47:09,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:47:09,587 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:47:09,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:47:09,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:47:09,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:47:09,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:47:09,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:47:09,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:47:09,588 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:47:09,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:47:09,588 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:47:09,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:47:09,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:47:09,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:47:09,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:47:09,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:47:09,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:47:09,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:47:09,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:47:09,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:47:09,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:47:09,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:47:09,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:47:09,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:47:09,590 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_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 -> b974f281a213c0803f91ef44d205e442fb2a5f8f [2019-12-07 17:47:09,691 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:47:09,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:47:09,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:47:09,705 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:47:09,705 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:47:09,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test23-1.c [2019-12-07 17:47:09,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/59f0e59d2/e192efa2eedf438a929937f3a15cb073/FLAG8a6414abb [2019-12-07 17:47:10,145 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:47:10,146 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/sv-benchmarks/c/ldv-regression/test23-1.c [2019-12-07 17:47:10,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/59f0e59d2/e192efa2eedf438a929937f3a15cb073/FLAG8a6414abb [2019-12-07 17:47:10,158 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/59f0e59d2/e192efa2eedf438a929937f3a15cb073 [2019-12-07 17:47:10,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:47:10,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:47:10,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:47:10,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:47:10,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:47:10,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd8e566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10, skipping insertion in model container [2019-12-07 17:47:10,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:47:10,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:47:10,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:47:10,338 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:47:10,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:47:10,363 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:47:10,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10 WrapperNode [2019-12-07 17:47:10,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:47:10,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:47:10,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:47:10,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:47:10,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:47:10,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:47:10,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:47:10,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:47:10,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... [2019-12-07 17:47:10,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:47:10,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:47:10,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:47:10,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:47:10,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 17:47:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:47:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:47:10,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:47:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:47:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:47:10,602 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:47:10,602 INFO L287 CfgBuilder]: Removed 13 assume(true) statements. [2019-12-07 17:47:10,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:10 BoogieIcfgContainer [2019-12-07 17:47:10,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:47:10,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:47:10,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:47:10,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:47:10,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:47:10" (1/3) ... [2019-12-07 17:47:10,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e56eb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:47:10, skipping insertion in model container [2019-12-07 17:47:10,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:10" (2/3) ... [2019-12-07 17:47:10,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e56eb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:47:10, skipping insertion in model container [2019-12-07 17:47:10,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:10" (3/3) ... [2019-12-07 17:47:10,608 INFO L109 eAbstractionObserver]: Analyzing ICFG test23-1.c [2019-12-07 17:47:10,614 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:47:10,618 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:47:10,625 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:47:10,640 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:47:10,640 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:47:10,640 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:47:10,640 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:47:10,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:47:10,640 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:47:10,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:47:10,640 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:47:10,650 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-12-07 17:47:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 17:47:10,654 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:47:10,654 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:47:10,654 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:47:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:10,660 INFO L82 PathProgramCache]: Analyzing trace with hash 2100293056, now seen corresponding path program 1 times [2019-12-07 17:47:10,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:10,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979630530] [2019-12-07 17:47:10,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:10,773 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 17:47:10,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979630530] [2019-12-07 17:47:10,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:47:10,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:47:10,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719502370] [2019-12-07 17:47:10,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:47:10,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:47:10,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:47:10,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:47:10,788 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-12-07 17:47:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:47:10,799 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-12-07 17:47:10,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:47:10,800 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-12-07 17:47:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:47:10,805 INFO L225 Difference]: With dead ends: 30 [2019-12-07 17:47:10,806 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 17:47:10,807 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 17:47:10,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 17:47:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 17:47:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 17:47:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-12-07 17:47:10,834 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 15 [2019-12-07 17:47:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:47:10,834 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-12-07 17:47:10,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:47:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-12-07 17:47:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 17:47:10,835 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:47:10,836 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:47:10,836 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:47:10,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:10,836 INFO L82 PathProgramCache]: Analyzing trace with hash 478567452, now seen corresponding path program 1 times [2019-12-07 17:47:10,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:10,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623308884] [2019-12-07 17:47:10,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:10,975 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 17:47:10,979 INFO L168 Benchmark]: Toolchain (without parser) took 817.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -83.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:10,979 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:47:10,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:10,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.12 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 17:47:10,980 INFO L168 Benchmark]: Boogie Preprocessor took 18.78 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 17:47:10,981 INFO L168 Benchmark]: RCFGBuilder took 193.24 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:10,981 INFO L168 Benchmark]: TraceAbstraction took 373.75 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:10,984 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 202.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.12 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 18.78 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 193.24 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 373.75 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: 33.6 MB). Peak memory consumption was 33.6 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 17:47:12,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:47:12,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:47:12,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:47:12,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:47:12,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:47:12,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:47:12,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:47:12,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:47:12,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:47:12,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:47:12,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:47:12,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:47:12,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:47:12,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:47:12,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:47:12,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:47:12,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:47:12,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:47:12,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:47:12,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:47:12,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:47:12,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:47:12,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:47:12,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:47:12,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:47:12,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:47:12,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:47:12,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:47:12,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:47:12,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:47:12,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:47:12,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:47:12,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:47:12,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:47:12,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:47:12,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:47:12,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:47:12,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:47:12,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:47:12,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:47:12,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 17:47:12,387 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:47:12,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:47:12,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:47:12,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:47:12,389 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:47:12,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:47:12,389 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:47:12,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:47:12,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:47:12,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:47:12,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:47:12,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:47:12,390 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:47:12,390 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:47:12,390 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:47:12,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:47:12,390 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:47:12,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:47:12,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:47:12,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:47:12,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:47:12,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:47:12,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:47:12,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:47:12,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:47:12,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:47:12,392 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 17:47:12,392 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:47:12,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:47:12,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:47:12,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:47:12,392 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_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 -> b974f281a213c0803f91ef44d205e442fb2a5f8f [2019-12-07 17:47:12,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:47:12,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:47:12,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:47:12,573 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:47:12,573 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:47:12,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test23-1.c [2019-12-07 17:47:12,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/155ee75f3/fed56423f73b42f7a4e946b50908f055/FLAG38a5dbe44 [2019-12-07 17:47:12,999 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:47:13,000 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/sv-benchmarks/c/ldv-regression/test23-1.c [2019-12-07 17:47:13,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/155ee75f3/fed56423f73b42f7a4e946b50908f055/FLAG38a5dbe44 [2019-12-07 17:47:13,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/data/155ee75f3/fed56423f73b42f7a4e946b50908f055 [2019-12-07 17:47:13,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:47:13,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:47:13,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:47:13,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:47:13,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:47:13,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17debb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13, skipping insertion in model container [2019-12-07 17:47:13,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:47:13,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:47:13,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:47:13,534 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:47:13,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:47:13,558 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:47:13,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13 WrapperNode [2019-12-07 17:47:13,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:47:13,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:47:13,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:47:13,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:47:13,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:47:13,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:47:13,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:47:13,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:47:13,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... [2019-12-07 17:47:13,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:47:13,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:47:13,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:47:13,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:47:13,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 17:47:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 17:47:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:47:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:47:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:47:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 17:47:13,858 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:47:13,858 INFO L287 CfgBuilder]: Removed 13 assume(true) statements. [2019-12-07 17:47:13,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:13 BoogieIcfgContainer [2019-12-07 17:47:13,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:47:13,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:47:13,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:47:13,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:47:13,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:47:13" (1/3) ... [2019-12-07 17:47:13,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6347281d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:47:13, skipping insertion in model container [2019-12-07 17:47:13,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:13" (2/3) ... [2019-12-07 17:47:13,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6347281d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:47:13, skipping insertion in model container [2019-12-07 17:47:13,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:13" (3/3) ... [2019-12-07 17:47:13,863 INFO L109 eAbstractionObserver]: Analyzing ICFG test23-1.c [2019-12-07 17:47:13,869 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:47:13,873 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:47:13,880 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:47:13,894 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:47:13,894 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:47:13,894 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:47:13,894 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:47:13,894 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:47:13,894 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:47:13,894 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:47:13,895 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:47:13,904 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-12-07 17:47:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 17:47:13,907 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:47:13,908 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:47:13,908 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:47:13,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:13,912 INFO L82 PathProgramCache]: Analyzing trace with hash 2100293056, now seen corresponding path program 1 times [2019-12-07 17:47:13,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:47:13,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290201366] [2019-12-07 17:47:13,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 17:47:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:13,986 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 17:47:13,989 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:13,999 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 17:47:13,999 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:47:14,002 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 17:47:14,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290201366] [2019-12-07 17:47:14,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:47:14,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 17:47:14,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152588262] [2019-12-07 17:47:14,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:47:14,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:47:14,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:47:14,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:47:14,016 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-12-07 17:47:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:47:14,027 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-12-07 17:47:14,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:47:14,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-12-07 17:47:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:47:14,034 INFO L225 Difference]: With dead ends: 30 [2019-12-07 17:47:14,034 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 17:47:14,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 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 17:47:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 17:47:14,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 17:47:14,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 17:47:14,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-12-07 17:47:14,064 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 15 [2019-12-07 17:47:14,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:47:14,064 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-12-07 17:47:14,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:47:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-12-07 17:47:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 17:47:14,065 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:47:14,065 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:47:14,266 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:47:14,266 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:47:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash 478567452, now seen corresponding path program 1 times [2019-12-07 17:47:14,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:47:14,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566485932] [2019-12-07 17:47:14,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 17:47:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:14,321 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 20 conjunts are in the unsatisfiable core [2019-12-07 17:47:14,323 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:14,455 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 11 treesize of output 7 [2019-12-07 17:47:14,455 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:47:14,472 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:47:14,473 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:47:14,473 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:24 [2019-12-07 17:47:14,518 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2019-12-07 17:47:14,519 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:47:14,532 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:47:14,533 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:47:14,533 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:16 [2019-12-07 17:47:14,585 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 17:47:14,585 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:47:14,654 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2019-12-07 17:47:14,655 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:47:14,706 INFO L614 ElimStorePlain]: treesize reduction 25, result has 56.9 percent of original size [2019-12-07 17:47:14,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:14,710 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 17:47:14,711 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:33 [2019-12-07 17:47:14,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:14,744 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 17:47:14,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566485932] [2019-12-07 17:47:14,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:47:14,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2019-12-07 17:47:14,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630164789] [2019-12-07 17:47:14,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 17:47:14,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:47:14,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 17:47:14,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:47:14,747 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 12 states. [2019-12-07 17:47:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:47:16,111 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2019-12-07 17:47:16,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-12-07 17:47:16,112 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2019-12-07 17:47:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:47:16,113 INFO L225 Difference]: With dead ends: 71 [2019-12-07 17:47:16,113 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 17:47:16,115 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=243, Invalid=813, Unknown=0, NotChecked=0, Total=1056 [2019-12-07 17:47:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 17:47:16,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 21. [2019-12-07 17:47:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 17:47:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-12-07 17:47:16,120 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2019-12-07 17:47:16,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:47:16,121 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-12-07 17:47:16,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 17:47:16,121 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-12-07 17:47:16,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 17:47:16,121 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:47:16,122 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:47:16,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:47:16,323 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:47:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1495361690, now seen corresponding path program 1 times [2019-12-07 17:47:16,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:47:16,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043460593] [2019-12-07 17:47:16,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 17:47:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:16,395 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 22 conjunts are in the unsatisfiable core [2019-12-07 17:47:16,398 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:16,487 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 11 treesize of output 7 [2019-12-07 17:47:16,487 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:47:16,499 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:47:16,500 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:47:16,500 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:24 [2019-12-07 17:47:16,636 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2019-12-07 17:47:16,637 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:47:16,651 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:47:16,652 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:47:16,652 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:16 [2019-12-07 17:47:16,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:47:16,736 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:47:17,002 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 48 [2019-12-07 17:47:17,003 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:47:17,083 INFO L614 ElimStorePlain]: treesize reduction 25, result has 55.4 percent of original size [2019-12-07 17:47:17,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:17,088 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 17:47:17,089 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:36, output treesize:31 [2019-12-07 17:47:17,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:47:17,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043460593] [2019-12-07 17:47:17,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:47:17,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2019-12-07 17:47:17,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143090104] [2019-12-07 17:47:17,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-12-07 17:47:17,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:47:17,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-12-07 17:47:17,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-12-07 17:47:17,146 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 16 states. [2019-12-07 17:47:21,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:47:21,631 INFO L93 Difference]: Finished difference Result 103 states and 121 transitions. [2019-12-07 17:47:21,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-12-07 17:47:21,631 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2019-12-07 17:47:21,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:47:21,632 INFO L225 Difference]: With dead ends: 103 [2019-12-07 17:47:21,633 INFO L226 Difference]: Without dead ends: 98 [2019-12-07 17:47:21,634 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1476 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=952, Invalid=3740, Unknown=0, NotChecked=0, Total=4692 [2019-12-07 17:47:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-12-07 17:47:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 29. [2019-12-07 17:47:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 17:47:21,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-12-07 17:47:21,640 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 20 [2019-12-07 17:47:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:47:21,640 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-12-07 17:47:21,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-12-07 17:47:21,640 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-12-07 17:47:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 17:47:21,641 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:47:21,641 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:47:21,842 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 17:47:21,843 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:47:21,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:21,843 INFO L82 PathProgramCache]: Analyzing trace with hash -597070086, now seen corresponding path program 2 times [2019-12-07 17:47:21,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:47:21,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011911889] [2019-12-07 17:47:21,844 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 17:47:21,934 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 17:47:21,934 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:47:21,939 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 28 conjunts are in the unsatisfiable core [2019-12-07 17:47:21,941 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:22,005 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 11 treesize of output 7 [2019-12-07 17:47:22,005 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:47:22,019 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:47:22,019 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:47:22,020 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:24 [2019-12-07 17:47:22,414 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2019-12-07 17:47:22,415 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:47:22,423 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:47:22,423 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:47:22,423 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:12 [2019-12-07 17:47:22,507 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:47:22,507 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:47:23,343 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 102 [2019-12-07 17:47:23,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:23,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:23,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:23,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:23,347 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:47:23,424 INFO L614 ElimStorePlain]: treesize reduction 73, result has 36.0 percent of original size [2019-12-07 17:47:23,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:23,427 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 17:47:23,427 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:41 [2019-12-07 17:47:23,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:47:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:47:23,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011911889] [2019-12-07 17:47:23,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:47:23,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 26 [2019-12-07 17:47:23,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660695571] [2019-12-07 17:47:23,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-12-07 17:47:23,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:47:23,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-12-07 17:47:23,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2019-12-07 17:47:23,465 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 26 states. [2019-12-07 17:47:28,534 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-12-07 17:47:28,934 WARN L192 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-12-07 17:47:29,420 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-12-07 17:47:29,816 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2019-12-07 17:47:30,208 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-12-07 17:47:30,639 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-12-07 17:47:31,135 WARN L192 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-12-07 17:47:31,578 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2019-12-07 17:47:31,930 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2019-12-07 17:47:32,306 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2019-12-07 17:47:32,758 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-12-07 17:47:33,226 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2019-12-07 17:47:33,556 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-07 17:47:33,927 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2019-12-07 17:47:34,343 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2019-12-07 17:47:34,786 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-07 17:47:35,133 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2019-12-07 17:47:35,468 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2019-12-07 17:47:35,799 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2019-12-07 17:47:36,172 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2019-12-07 17:47:36,493 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-12-07 17:47:36,786 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-12-07 17:47:37,094 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-12-07 17:47:37,455 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2019-12-07 17:47:37,718 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2019-12-07 17:47:38,651 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-12-07 17:47:40,297 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2019-12-07 17:47:43,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:47:43,573 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2019-12-07 17:47:43,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2019-12-07 17:47:43,574 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 28 [2019-12-07 17:47:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:47:43,575 INFO L225 Difference]: With dead ends: 187 [2019-12-07 17:47:43,575 INFO L226 Difference]: Without dead ends: 182 [2019-12-07 17:47:43,580 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7499 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=3438, Invalid=16868, Unknown=0, NotChecked=0, Total=20306 [2019-12-07 17:47:43,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-12-07 17:47:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 45. [2019-12-07 17:47:43,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 17:47:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2019-12-07 17:47:43,587 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 28 [2019-12-07 17:47:43,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:47:43,588 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2019-12-07 17:47:43,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-12-07 17:47:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2019-12-07 17:47:43,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 17:47:43,588 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:47:43,589 INFO L410 BasicCegarLoop]: trace histogram [12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:47:43,789 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 17:47:43,789 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:47:43,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:43,789 INFO L82 PathProgramCache]: Analyzing trace with hash 958970451, now seen corresponding path program 3 times [2019-12-07 17:47:43,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:47:43,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678802346] [2019-12-07 17:47:43,790 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/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 17:47:43,910 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-12-07 17:47:43,910 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 17:47:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:44,001 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 17:47:44,002 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:47:44,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 17:47:44,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:47:44 BoogieIcfgContainer [2019-12-07 17:47:44,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:47:44,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:47:44,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:47:44,262 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:47:44,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:13" (3/4) ... [2019-12-07 17:47:44,264 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 17:47:44,303 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eea5620c-ab2c-4581-8da5-796b01b9b8d8/bin/uautomizer/witness.graphml [2019-12-07 17:47:44,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:47:44,304 INFO L168 Benchmark]: Toolchain (without parser) took 30915.99 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 361.2 MB). Free memory was 950.9 MB in the beginning and 908.3 MB in the end (delta: 42.6 MB). Peak memory consumption was 403.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:44,305 INFO L168 Benchmark]: CDTParser took 0.14 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 17:47:44,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.63 ms. Allocated memory is still 1.0 GB. Free memory was 950.9 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:44,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Free memory was 940.2 MB in the beginning and 1.0 GB in the end (delta: -75.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:44,306 INFO L168 Benchmark]: Boogie Preprocessor took 42.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -166.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:44,306 INFO L168 Benchmark]: RCFGBuilder took 225.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:44,306 INFO L168 Benchmark]: TraceAbstraction took 30402.04 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 173.0 MB). Free memory was 1.2 GB in the beginning and 908.3 MB in the end (delta: 255.7 MB). Peak memory consumption was 428.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:44,306 INFO L168 Benchmark]: Witness Printer took 41.77 ms. Allocated memory is still 1.4 GB. Free memory is still 908.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:47:44,308 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 169.63 ms. Allocated memory is still 1.0 GB. Free memory was 950.9 MB in the beginning and 940.2 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 32.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Free memory was 940.2 MB in the beginning and 1.0 GB in the end (delta: -75.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -166.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 225.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 30402.04 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 173.0 MB). Free memory was 1.2 GB in the beginning and 908.3 MB in the end (delta: 255.7 MB). Peak memory consumption was 428.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.77 ms. Allocated memory is still 1.4 GB. Free memory is still 908.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 50]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] struct dummy d1, d2; VAL [d1={2:0}, d2={3:0}] [L14] d1.a = __VERIFIER_nondet_int() [L15] d1.b = __VERIFIER_nondet_int() [L17] d2.a = __VERIFIER_nondet_int() [L18] d2.b = __VERIFIER_nondet_int() [L23] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [d1={2:0}, d2={3:0}] [L23] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L34] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L23] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [d1={2:0}, d2={3:0}] [L23] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L34] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L35] int i = __VERIFIER_nondet_int(); [L36] COND TRUE pd1 != 0 && pd1 == pd2 && i >= 0 && i < 10 [L37] pd2->array[i] = i [L38] int *pa = &pd1->array[i]; [L39] EXPR pd2->array[i] [L39] i = pd2->array[i] - 10 [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={2:0}, d2={3:0}] [L40] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L40] COND FALSE !(i <= *pa) [L28] EXPR s1->array[i] [L28] return s1->array[i] == i; [L43] COND TRUE !check(pd2, i) [L50] __VERIFIER_error() VAL [d1={2:0}, d2={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: UNSAFE, OverallTime: 30.3s, OverallIterations: 5, TraceHistogramMax: 12, AutomataDifference: 25.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 621 SDslu, 253 SDs, 0 SdLazy, 701 SolverSat, 340 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 341 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9190 ImplicationChecksByTransitivity, 26.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 251 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 26049 SizeOfPredicates, 42 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 0/96 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...