./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/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 8fd23352dd8ab85cd861f1c1ff83b687f6651dee ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/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 8fd23352dd8ab85cd861f1c1ff83b687f6651dee .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: |#memory_int| input size 127 context size 127 output size 127 --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:38,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:38,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:38,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:38,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:38,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:38,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:38,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:38,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:38,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:38,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:38,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:38,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:38,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:38,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:38,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:38,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:38,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:38,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:38,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:38,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:38,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:38,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:38,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:38,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:38,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:38,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:38,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:38,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:38,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:38,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:38,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:38,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:38,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:38,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:38,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:38,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:38,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:38,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:38,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:38,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:38,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:51:38,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:38,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:38,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:38,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:38,661 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:38,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:38,661 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:38,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:38,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:38,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:38,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:38,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:38,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:38,662 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:38,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:38,663 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:38,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:38,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:38,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:38,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:38,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:38,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:38,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:38,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:38,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:38,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:38,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:51:38,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:38,665 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_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/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 -> 8fd23352dd8ab85cd861f1c1ff83b687f6651dee [2019-11-25 08:51:38,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:38,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:38,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:38,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:38,864 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:38,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/../../sv-benchmarks/c/array-fpi/sina4.c [2019-11-25 08:51:38,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/0ee802587/249c09b87b7c4f8b8e38f22fa12ef8c6/FLAG1582fcf45 [2019-11-25 08:51:39,311 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:39,312 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/sv-benchmarks/c/array-fpi/sina4.c [2019-11-25 08:51:39,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/0ee802587/249c09b87b7c4f8b8e38f22fa12ef8c6/FLAG1582fcf45 [2019-11-25 08:51:39,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/0ee802587/249c09b87b7c4f8b8e38f22fa12ef8c6 [2019-11-25 08:51:39,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:39,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:39,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:39,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:39,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:39,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:39" (1/1) ... [2019-11-25 08:51:39,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414509e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:39, skipping insertion in model container [2019-11-25 08:51:39,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:39" (1/1) ... [2019-11-25 08:51:39,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:39,738 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:40,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:40,013 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:40,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:40,047 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:40,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40 WrapperNode [2019-11-25 08:51:40,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:40,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:40,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:40,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:40,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:40,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:40,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:40,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:40,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... [2019-11-25 08:51:40,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:40,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:40,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:40,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:40,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:51:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:51:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:40,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:51:40,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:40,500 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:40,500 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-25 08:51:40,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:40 BoogieIcfgContainer [2019-11-25 08:51:40,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:40,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:40,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:40,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:40,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:39" (1/3) ... [2019-11-25 08:51:40,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d267c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:40, skipping insertion in model container [2019-11-25 08:51:40,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:40" (2/3) ... [2019-11-25 08:51:40,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d267c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:40, skipping insertion in model container [2019-11-25 08:51:40,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:40" (3/3) ... [2019-11-25 08:51:40,511 INFO L109 eAbstractionObserver]: Analyzing ICFG sina4.c [2019-11-25 08:51:40,521 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:40,527 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:40,539 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:40,567 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:40,567 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:40,567 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:40,567 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:40,568 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:40,568 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:40,568 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:40,568 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-25 08:51:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:51:40,594 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:40,595 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:40,595 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:40,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:40,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1543917039, now seen corresponding path program 1 times [2019-11-25 08:51:40,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:40,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477682526] [2019-11-25 08:51:40,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:40,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477682526] [2019-11-25 08:51:40,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:40,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:51:40,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168132366] [2019-11-25 08:51:40,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:51:40,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:40,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:51:40,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:40,768 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-25 08:51:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:40,784 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2019-11-25 08:51:40,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:51:40,785 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-25 08:51:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:40,794 INFO L225 Difference]: With dead ends: 45 [2019-11-25 08:51:40,794 INFO L226 Difference]: Without dead ends: 21 [2019-11-25 08:51:40,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:40,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-25 08:51:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-25 08:51:40,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-25 08:51:40,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-25 08:51:40,831 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2019-11-25 08:51:40,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:40,831 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-25 08:51:40,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:51:40,831 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-25 08:51:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:51:40,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:40,832 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:40,833 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:40,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:40,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1392318587, now seen corresponding path program 1 times [2019-11-25 08:51:40,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:40,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302288104] [2019-11-25 08:51:40,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:40,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:40,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302288104] [2019-11-25 08:51:40,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:40,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:51:40,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430976676] [2019-11-25 08:51:40,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:51:40,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:40,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:51:40,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:40,906 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-11-25 08:51:40,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:40,975 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-25 08:51:40,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:51:40,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-25 08:51:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:40,977 INFO L225 Difference]: With dead ends: 39 [2019-11-25 08:51:40,977 INFO L226 Difference]: Without dead ends: 23 [2019-11-25 08:51:40,978 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:40,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-25 08:51:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-25 08:51:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:51:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-25 08:51:40,984 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2019-11-25 08:51:40,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:40,984 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-25 08:51:40,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:51:40,985 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-25 08:51:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:51:40,986 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:40,986 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:40,986 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:40,987 INFO L82 PathProgramCache]: Analyzing trace with hash -298812061, now seen corresponding path program 1 times [2019-11-25 08:51:40,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:40,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127036473] [2019-11-25 08:51:40,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:51:41,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127036473] [2019-11-25 08:51:41,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:41,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:51:41,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028741378] [2019-11-25 08:51:41,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:51:41,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:41,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:51:41,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:41,059 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-11-25 08:51:41,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:41,151 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2019-11-25 08:51:41,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:51:41,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-25 08:51:41,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:41,153 INFO L225 Difference]: With dead ends: 48 [2019-11-25 08:51:41,153 INFO L226 Difference]: Without dead ends: 35 [2019-11-25 08:51:41,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:41,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-25 08:51:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2019-11-25 08:51:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:51:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-11-25 08:51:41,160 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 16 [2019-11-25 08:51:41,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:41,161 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-11-25 08:51:41,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:51:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2019-11-25 08:51:41,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:51:41,162 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:41,162 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:41,162 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:41,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:41,163 INFO L82 PathProgramCache]: Analyzing trace with hash -312639363, now seen corresponding path program 1 times [2019-11-25 08:51:41,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:41,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834097215] [2019-11-25 08:51:41,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:41,644 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-11-25 08:51:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:42,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834097215] [2019-11-25 08:51:42,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65996283] [2019-11-25 08:51:42,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:42,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-25 08:51:42,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:42,635 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2019-11-25 08:51:42,635 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:42,657 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:42,671 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-11-25 08:51:42,672 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:42,684 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:42,685 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:42,685 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-11-25 08:51:42,742 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-11-25 08:51:42,743 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:42,769 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:42,770 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:42,770 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-25 08:51:42,996 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-11-25 08:51:42,997 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:43,011 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:43,012 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:43,012 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:29 [2019-11-25 08:51:43,117 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 23 [2019-11-25 08:51:43,119 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:43,145 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:43,146 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:51:43,147 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:31 [2019-11-25 08:51:43,324 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:43,324 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 84 [2019-11-25 08:51:43,326 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:43,390 INFO L567 ElimStorePlain]: treesize reduction 40, result has 60.0 percent of original size [2019-11-25 08:51:43,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,400 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-11-25 08:51:43,400 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:60 [2019-11-25 08:51:43,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,832 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-11-25 08:51:43,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:43,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:51:43,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2019-11-25 08:51:43,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188887867] [2019-11-25 08:51:43,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-25 08:51:43,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:43,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-25 08:51:43,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2019-11-25 08:51:43,926 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 26 states. [2019-11-25 08:51:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:44,963 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-11-25 08:51:44,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-25 08:51:44,964 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 22 [2019-11-25 08:51:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:44,965 INFO L225 Difference]: With dead ends: 55 [2019-11-25 08:51:44,965 INFO L226 Difference]: Without dead ends: 53 [2019-11-25 08:51:44,966 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 9 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2019-11-25 08:51:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-25 08:51:44,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2019-11-25 08:51:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-25 08:51:44,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2019-11-25 08:51:44,976 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 22 [2019-11-25 08:51:44,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:44,976 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2019-11-25 08:51:44,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-25 08:51:44,977 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2019-11-25 08:51:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:51:44,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:44,978 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:45,183 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:45,183 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:45,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:45,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1846667163, now seen corresponding path program 2 times [2019-11-25 08:51:45,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:45,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730490409] [2019-11-25 08:51:45,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:51:45,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730490409] [2019-11-25 08:51:45,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916423383] [2019-11-25 08:51:45,269 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:45,315 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-25 08:51:45,315 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:51:45,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:51:45,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:51:45,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:51:45,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-11-25 08:51:45,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377850744] [2019-11-25 08:51:45,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:51:45,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:45,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:51:45,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:51:45,350 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 10 states. [2019-11-25 08:51:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:45,513 INFO L93 Difference]: Finished difference Result 99 states and 115 transitions. [2019-11-25 08:51:45,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:51:45,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-11-25 08:51:45,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:45,514 INFO L225 Difference]: With dead ends: 99 [2019-11-25 08:51:45,514 INFO L226 Difference]: Without dead ends: 64 [2019-11-25 08:51:45,515 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:51:45,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-25 08:51:45,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 44. [2019-11-25 08:51:45,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-25 08:51:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2019-11-25 08:51:45,533 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 24 [2019-11-25 08:51:45,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:45,533 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2019-11-25 08:51:45,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:51:45,533 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2019-11-25 08:51:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:51:45,534 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:45,535 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:45,737 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:45,738 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:45,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:45,738 INFO L82 PathProgramCache]: Analyzing trace with hash 427710555, now seen corresponding path program 3 times [2019-11-25 08:51:45,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:45,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779628314] [2019-11-25 08:51:45,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:51:45,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779628314] [2019-11-25 08:51:45,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771459007] [2019-11-25 08:51:45,815 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:45,856 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-25 08:51:45,856 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:51:45,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:51:45,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:45,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:51:45,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:51:45,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-11-25 08:51:45,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249039947] [2019-11-25 08:51:45,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:51:45,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:45,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:51:45,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:51:45,909 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 10 states. [2019-11-25 08:51:46,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:46,086 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2019-11-25 08:51:46,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:51:46,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-11-25 08:51:46,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:46,087 INFO L225 Difference]: With dead ends: 61 [2019-11-25 08:51:46,087 INFO L226 Difference]: Without dead ends: 48 [2019-11-25 08:51:46,088 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2019-11-25 08:51:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-25 08:51:46,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2019-11-25 08:51:46,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-25 08:51:46,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2019-11-25 08:51:46,093 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2019-11-25 08:51:46,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:46,093 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2019-11-25 08:51:46,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:51:46,093 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2019-11-25 08:51:46,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-25 08:51:46,094 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:46,094 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:46,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:46,295 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:46,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:46,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1584070283, now seen corresponding path program 4 times [2019-11-25 08:51:46,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:46,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940945658] [2019-11-25 08:51:46,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:48,361 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:48,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940945658] [2019-11-25 08:51:48,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748112618] [2019-11-25 08:51:48,362 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:48,414 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-25 08:51:48,414 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:51:48,416 WARN L253 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 53 conjunts are in the unsatisfiable core [2019-11-25 08:51:48,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:48,436 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2019-11-25 08:51:48,437 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:48,463 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:48,472 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-11-25 08:51:48,473 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:48,495 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:48,495 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:48,495 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:24 [2019-11-25 08:51:48,565 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-11-25 08:51:48,566 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:48,581 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:48,581 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:48,581 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2019-11-25 08:51:48,683 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:51:48,684 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2019-11-25 08:51:48,685 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:48,701 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:48,701 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:48,702 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2019-11-25 08:51:49,021 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:51:49,022 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.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.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) 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.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2019-11-25 08:51:49,027 INFO L168 Benchmark]: Toolchain (without parser) took 9327.63 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 274.7 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -58.6 MB). Peak memory consumption was 216.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,027 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:49,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -194.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:49,029 INFO L168 Benchmark]: Boogie Preprocessor took 26.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,030 INFO L168 Benchmark]: RCFGBuilder took 391.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,031 INFO L168 Benchmark]: TraceAbstraction took 8522.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 120.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.1 MB). Peak memory consumption was 229.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,034 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 344.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -194.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 391.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8522.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 120.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.1 MB). Peak memory consumption was 229.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:50,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:50,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:50,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:50,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:50,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:50,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:50,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:50,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:50,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:50,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:50,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:50,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:50,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:50,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:50,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:50,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:50,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:50,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:50,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:50,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:50,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:50,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:50,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:50,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:50,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:50,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:50,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:50,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:50,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:50,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:50,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:50,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:50,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:50,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:50,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:50,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:50,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:50,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:50,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:50,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:50,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:51:51,017 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:51,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:51,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:51,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:51,020 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:51,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:51,021 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:51,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:51,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:51,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:51,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:51,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:51,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:51:51,024 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:51:51,024 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:51,024 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:51,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:51,025 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:51,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:51,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:51,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:51,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:51,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:51,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:51,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:51,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:51,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:51,028 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:51:51,028 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:51:51,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:51,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:51:51,029 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_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/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 -> 8fd23352dd8ab85cd861f1c1ff83b687f6651dee [2019-11-25 08:51:51,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:51,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:51,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:51,423 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:51,424 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:51,424 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/../../sv-benchmarks/c/array-fpi/sina4.c [2019-11-25 08:51:51,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/a05072ec9/d95a5366808147879356aeb3608609d0/FLAG08f31823b [2019-11-25 08:51:51,881 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:51,881 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/sv-benchmarks/c/array-fpi/sina4.c [2019-11-25 08:51:51,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/a05072ec9/d95a5366808147879356aeb3608609d0/FLAG08f31823b [2019-11-25 08:51:52,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/data/a05072ec9/d95a5366808147879356aeb3608609d0 [2019-11-25 08:51:52,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:52,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:52,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:52,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:52,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:52,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5811ac0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52, skipping insertion in model container [2019-11-25 08:51:52,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:52,356 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:52,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:52,527 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:52,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:52,627 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:52,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52 WrapperNode [2019-11-25 08:51:52,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:52,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:52,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:52,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:52,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:52,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:52,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:52,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:52,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:52,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:52,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:52,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:52,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-25 08:51:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:51:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-11-25 08:51:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:53,185 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:53,186 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-25 08:51:53,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53 BoogieIcfgContainer [2019-11-25 08:51:53,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:53,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:53,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:53,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:53,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:52" (1/3) ... [2019-11-25 08:51:53,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f08098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:53, skipping insertion in model container [2019-11-25 08:51:53,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52" (2/3) ... [2019-11-25 08:51:53,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f08098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:53, skipping insertion in model container [2019-11-25 08:51:53,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53" (3/3) ... [2019-11-25 08:51:53,195 INFO L109 eAbstractionObserver]: Analyzing ICFG sina4.c [2019-11-25 08:51:53,207 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:53,214 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:53,224 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:53,249 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:53,250 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:53,250 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:53,250 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:53,250 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:53,251 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:53,251 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:53,251 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-25 08:51:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:51:53,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:53,274 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:53,275 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:53,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:53,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1543917039, now seen corresponding path program 1 times [2019-11-25 08:51:53,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:53,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [298197319] [2019-11-25 08:51:53,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:53,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:51:53,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:53,439 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:53,446 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [298197319] [2019-11-25 08:51:53,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:53,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:51:53,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653070197] [2019-11-25 08:51:53,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:51:53,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:53,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:51:53,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:53,471 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-25 08:51:53,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:53,489 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2019-11-25 08:51:53,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:51:53,491 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-25 08:51:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:53,501 INFO L225 Difference]: With dead ends: 45 [2019-11-25 08:51:53,501 INFO L226 Difference]: Without dead ends: 21 [2019-11-25 08:51:53,504 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:53,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-25 08:51:53,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-25 08:51:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-25 08:51:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-25 08:51:53,541 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2019-11-25 08:51:53,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:53,542 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-25 08:51:53,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:51:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-25 08:51:53,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:51:53,543 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:53,544 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:53,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:53,746 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:53,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:53,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1392318587, now seen corresponding path program 1 times [2019-11-25 08:51:53,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:53,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2065852376] [2019-11-25 08:51:53,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:53,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:51:53,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:53,888 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:53,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2065852376] [2019-11-25 08:51:53,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:53,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-25 08:51:53,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377789226] [2019-11-25 08:51:53,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:51:53,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:53,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:51:53,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:53,908 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 4 states. [2019-11-25 08:51:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:54,028 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-25 08:51:54,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:51:54,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-25 08:51:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:54,030 INFO L225 Difference]: With dead ends: 39 [2019-11-25 08:51:54,030 INFO L226 Difference]: Without dead ends: 23 [2019-11-25 08:51:54,031 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:54,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-25 08:51:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-25 08:51:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:51:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-25 08:51:54,038 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2019-11-25 08:51:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:54,039 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-25 08:51:54,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:51:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-25 08:51:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:51:54,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:54,042 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:54,244 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:54,244 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:54,245 INFO L82 PathProgramCache]: Analyzing trace with hash -298812061, now seen corresponding path program 1 times [2019-11-25 08:51:54,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:54,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [866250847] [2019-11-25 08:51:54,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:54,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:51:54,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:54,434 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:54,547 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [866250847] [2019-11-25 08:51:54,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:51:54,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-25 08:51:54,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300132340] [2019-11-25 08:51:54,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:51:54,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:54,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:51:54,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:51:54,550 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 10 states. [2019-11-25 08:51:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:55,088 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2019-11-25 08:51:55,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:51:55,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-11-25 08:51:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:55,091 INFO L225 Difference]: With dead ends: 84 [2019-11-25 08:51:55,091 INFO L226 Difference]: Without dead ends: 66 [2019-11-25 08:51:55,092 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:51:55,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-25 08:51:55,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 48. [2019-11-25 08:51:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-25 08:51:55,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2019-11-25 08:51:55,118 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 16 [2019-11-25 08:51:55,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:55,118 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2019-11-25 08:51:55,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:51:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2019-11-25 08:51:55,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:51:55,122 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:55,122 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:55,325 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:55,327 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:55,327 INFO L82 PathProgramCache]: Analyzing trace with hash -312639363, now seen corresponding path program 1 times [2019-11-25 08:51:55,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:55,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1341229094] [2019-11-25 08:51:55,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc4eb2e-60d9-492f-8105-01ac7a3cf964/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:55,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-25 08:51:55,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:55,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:51:55,611 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2019-11-25 08:51:55,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:55,629 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:55,630 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:55,630 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:27 [2019-11-25 08:51:55,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:51:55,699 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:57,722 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0.base| (_ BitVec 32))) (not (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~#sum~0.offset| (_ bv4 32))) (.cse0 (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0.base|))) (let ((.cse1 (bvadd (concat (select .cse0 .cse2) (select .cse0 |c_ULTIMATE.start_main_~#sum~0.offset|)) (let ((.cse3 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse4 (bvmul c_ULTIMATE.start_main_~i~0 (_ bv8 32)))) (concat (select .cse3 (bvadd c_ULTIMATE.start_main_~a~0.offset .cse4 (_ bv4 32))) (select .cse3 (bvadd c_ULTIMATE.start_main_~a~0.offset .cse4))))))) (= (store |c_#memory_int| |ULTIMATE.start_main_~#sum~0.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0.offset| ((_ extract 31 0) .cse1))) (store |c_#memory_int| |ULTIMATE.start_main_~#sum~0.base| (store .cse0 .cse2 ((_ extract 63 32) .cse1)))))))) is different from false [2019-11-25 08:51:59,737 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0.base| (_ BitVec 32))) (not (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~#sum~0.offset| (_ bv4 32))) (.cse0 (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0.base|))) (let ((.cse1 (bvadd (concat (select .cse0 .cse2) (select .cse0 |c_ULTIMATE.start_main_~#sum~0.offset|)) (let ((.cse3 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base))) (concat (select .cse3 (bvadd c_ULTIMATE.start_main_~a~0.offset (_ bv4 32))) (select .cse3 c_ULTIMATE.start_main_~a~0.offset)))))) (= (store |c_#memory_int| |ULTIMATE.start_main_~#sum~0.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0.offset| ((_ extract 31 0) .cse1))) (store |c_#memory_int| |ULTIMATE.start_main_~#sum~0.base| (store .cse0 .cse2 ((_ extract 63 32) .cse1)))))))) is different from false [2019-11-25 08:51:59,820 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:00,021 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:00,022 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |#memory_int| input size 127 context size 127 output size 127 at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:351) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.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.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2019-11-25 08:52:00,026 INFO L168 Benchmark]: Toolchain (without parser) took 7703.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -64.5 MB). Peak memory consumption was 132.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:00,026 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:00,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -233.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:00,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.96 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: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:00,030 INFO L168 Benchmark]: Boogie Preprocessor took 32.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:00,031 INFO L168 Benchmark]: RCFGBuilder took 468.87 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:00,032 INFO L168 Benchmark]: TraceAbstraction took 6836.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 137.8 MB). Peak memory consumption was 137.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:00,035 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -233.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.96 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: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 468.87 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6836.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 137.8 MB). Peak memory consumption was 137.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |#memory_int| input size 127 context size 127 output size 127 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |#memory_int| input size 127 context size 127 output size 127: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:351) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...