./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e9d0e89ee237165e6cd15cb730148b321ca31eb .................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e9d0e89ee237165e6cd15cb730148b321ca31eb .................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:25:45,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:25:45,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:25:45,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:25:45,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:25:45,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:25:45,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:25:45,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:25:45,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:25:45,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:25:45,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:25:45,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:25:45,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:25:45,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:25:45,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:25:45,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:25:45,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:25:45,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:25:45,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:25:45,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:25:45,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:25:45,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:25:45,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:25:45,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:25:45,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:25:45,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:25:45,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:25:45,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:25:45,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:25:45,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:25:45,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:25:45,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:25:45,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:25:45,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:25:45,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:25:45,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:25:45,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:25:45,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:25:45,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:25:45,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:25:45,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:25:45,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:25:45,699 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:25:45,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:25:45,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:25:45,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:25:45,701 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:25:45,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:25:45,702 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:25:45,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:25:45,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:25:45,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:25:45,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:25:45,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:25:45,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:25:45,704 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:25:45,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:25:45,704 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:25:45,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:25:45,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:25:45,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:25:45,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:25:45,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:25:45,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:25:45,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:25:45,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:25:45,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:25:45,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:25:45,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:25:45,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:25:45,708 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_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e9d0e89ee237165e6cd15cb730148b321ca31eb [2019-11-20 00:25:45,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:25:45,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:25:45,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:25:45,951 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:25:45,951 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:25:45,953 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-20 00:25:46,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/3549a9f85/c1af6f173b6d4a0fba9cd6eee7e7962e/FLAGc92b4e4ef [2019-11-20 00:25:46,489 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:25:46,489 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-20 00:25:46,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/3549a9f85/c1af6f173b6d4a0fba9cd6eee7e7962e/FLAGc92b4e4ef [2019-11-20 00:25:46,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/3549a9f85/c1af6f173b6d4a0fba9cd6eee7e7962e [2019-11-20 00:25:46,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:25:46,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:25:46,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:25:46,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:25:46,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:25:46,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:25:46" (1/1) ... [2019-11-20 00:25:46,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26de5b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:46, skipping insertion in model container [2019-11-20 00:25:46,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:25:46" (1/1) ... [2019-11-20 00:25:46,904 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:25:46,923 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:25:47,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:25:47,258 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:25:47,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:25:47,300 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:25:47,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47 WrapperNode [2019-11-20 00:25:47,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:25:47,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:25:47,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:25:47,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:25:47,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:25:47,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:25:47,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:25:47,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:25:47,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... [2019-11-20 00:25:47,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:25:47,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:25:47,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:25:47,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:25:47,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:25:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 00:25:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:25:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:25:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:25:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:25:47,928 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:25:47,929 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 00:25:47,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:25:47 BoogieIcfgContainer [2019-11-20 00:25:47,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:25:47,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:25:47,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:25:47,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:25:47,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:25:46" (1/3) ... [2019-11-20 00:25:47,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181370e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:25:47, skipping insertion in model container [2019-11-20 00:25:47,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:47" (2/3) ... [2019-11-20 00:25:47,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181370e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:25:47, skipping insertion in model container [2019-11-20 00:25:47,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:25:47" (3/3) ... [2019-11-20 00:25:47,946 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-20 00:25:47,955 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:25:47,961 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-20 00:25:47,971 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-20 00:25:48,001 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:25:48,001 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:25:48,001 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:25:48,001 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:25:48,002 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:25:48,002 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:25:48,002 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:25:48,002 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:25:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 00:25:48,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 00:25:48,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:25:48,029 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:25:48,030 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:25:48,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:25:48,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-20 00:25:48,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:25:48,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987982093] [2019-11-20 00:25:48,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:25:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:25:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:25:48,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987982093] [2019-11-20 00:25:48,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:25:48,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:25:48,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696702874] [2019-11-20 00:25:48,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:25:48,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:25:48,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:25:48,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:25:48,207 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-20 00:25:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:25:48,223 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-20 00:25:48,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:25:48,224 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-20 00:25:48,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:25:48,233 INFO L225 Difference]: With dead ends: 35 [2019-11-20 00:25:48,233 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 00:25:48,236 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 [2019-11-20 00:25:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 00:25:48,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 00:25:48,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 00:25:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-20 00:25:48,270 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-20 00:25:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:25:48,270 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-20 00:25:48,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:25:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-20 00:25:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 00:25:48,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:25:48,271 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:25:48,272 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:25:48,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:25:48,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-20 00:25:48,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:25:48,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635745911] [2019-11-20 00:25:48,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:25:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:25:48,361 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (const Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1307) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1188) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.TermTransferrer.convertApplicationTerm(TermTransferrer.java:182) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:573) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:171) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:202) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.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) [2019-11-20 00:25:48,367 INFO L168 Benchmark]: Toolchain (without parser) took 1483.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -134.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:25:48,368 INFO L168 Benchmark]: CDTParser took 0.38 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. [2019-11-20 00:25:48,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:25:48,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:25:48,370 INFO L168 Benchmark]: Boogie Preprocessor took 30.81 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. [2019-11-20 00:25:48,371 INFO L168 Benchmark]: RCFGBuilder took 544.39 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:25:48,372 INFO L168 Benchmark]: TraceAbstraction took 433.90 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:25:48,376 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 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 414.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.81 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. * RCFGBuilder took 544.39 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 433.90 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (const Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (const Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 00:25:50,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:25:50,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:25:50,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:25:50,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:25:50,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:25:50,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:25:50,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:25:50,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:25:50,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:25:50,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:25:50,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:25:50,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:25:50,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:25:50,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:25:50,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:25:50,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:25:50,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:25:50,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:25:50,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:25:50,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:25:50,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:25:50,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:25:50,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:25:50,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:25:50,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:25:50,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:25:50,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:25:50,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:25:50,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:25:50,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:25:50,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:25:50,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:25:50,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:25:50,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:25:50,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:25:50,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:25:50,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:25:50,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:25:50,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:25:50,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:25:50,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 00:25:50,647 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:25:50,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:25:50,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:25:50,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:25:50,660 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:25:50,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:25:50,661 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:25:50,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:25:50,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:25:50,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:25:50,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:25:50,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:25:50,664 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 00:25:50,664 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 00:25:50,665 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:25:50,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:25:50,666 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:25:50,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:25:50,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:25:50,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:25:50,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:25:50,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:25:50,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:25:50,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:25:50,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:25:50,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:25:50,670 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 00:25:50,670 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 00:25:50,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:25:50,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 00:25:50,671 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_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e9d0e89ee237165e6cd15cb730148b321ca31eb [2019-11-20 00:25:51,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:25:51,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:25:51,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:25:51,098 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:25:51,099 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:25:51,100 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-20 00:25:51,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/d9a8fecf7/414fb0b1082b4e4ca43fbc5175adb7c5/FLAG107ea8ce6 [2019-11-20 00:25:51,550 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:25:51,551 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-20 00:25:51,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/d9a8fecf7/414fb0b1082b4e4ca43fbc5175adb7c5/FLAG107ea8ce6 [2019-11-20 00:25:51,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/data/d9a8fecf7/414fb0b1082b4e4ca43fbc5175adb7c5 [2019-11-20 00:25:51,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:25:51,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:25:51,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:25:51,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:25:51,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:25:51,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:25:51" (1/1) ... [2019-11-20 00:25:51,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e364a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:51, skipping insertion in model container [2019-11-20 00:25:51,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:25:51" (1/1) ... [2019-11-20 00:25:51,954 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:25:51,971 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:25:52,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:25:52,190 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:25:52,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:25:52,257 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:25:52,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52 WrapperNode [2019-11-20 00:25:52,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:25:52,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:25:52,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:25:52,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:25:52,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:25:52,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:25:52,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:25:52,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:25:52,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... [2019-11-20 00:25:52,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:25:52,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:25:52,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:25:52,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:25:52,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:25:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 00:25:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 00:25:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:25:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:25:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:25:52,849 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:25:52,850 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 00:25:52,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:25:52 BoogieIcfgContainer [2019-11-20 00:25:52,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:25:52,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:25:52,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:25:52,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:25:52,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:25:51" (1/3) ... [2019-11-20 00:25:52,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f18f11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:25:52, skipping insertion in model container [2019-11-20 00:25:52,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:25:52" (2/3) ... [2019-11-20 00:25:52,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f18f11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:25:52, skipping insertion in model container [2019-11-20 00:25:52,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:25:52" (3/3) ... [2019-11-20 00:25:52,861 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-20 00:25:52,872 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:25:52,880 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-20 00:25:52,893 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-20 00:25:52,920 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:25:52,920 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:25:52,921 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:25:52,921 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:25:52,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:25:52,921 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:25:52,922 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:25:52,922 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:25:52,938 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 00:25:52,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 00:25:52,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:25:52,946 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:25:52,947 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:25:52,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:25:52,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-20 00:25:52,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:25:52,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1543203853] [2019-11-20 00:25:52,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/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 [2019-11-20 00:25:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:25:53,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 00:25:53,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:25:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:25:53,098 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:25:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:25:53,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1543203853] [2019-11-20 00:25:53,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:25:53,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 00:25:53,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904740977] [2019-11-20 00:25:53,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:25:53,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:25:53,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:25:53,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:25:53,128 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-20 00:25:53,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:25:53,144 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-20 00:25:53,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:25:53,146 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-20 00:25:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:25:53,157 INFO L225 Difference]: With dead ends: 35 [2019-11-20 00:25:53,157 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 00:25:53,160 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:25:53,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 00:25:53,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 00:25:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 00:25:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-20 00:25:53,193 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-20 00:25:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:25:53,194 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-20 00:25:53,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:25:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-20 00:25:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 00:25:53,195 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:25:53,195 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:25:53,398 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:25:53,398 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:25:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:25:53,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-20 00:25:53,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:25:53,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1090811539] [2019-11-20 00:25:53,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b5ecbfb-94e8-40ba-ac22-a1b0de3f9950/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 [2019-11-20 00:25:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:25:53,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 00:25:53,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:25:53,569 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2019-11-20 00:25:53,570 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:25:53,578 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:25:53,579 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:25:53,579 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2019-11-20 00:25:53,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:25:53,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:25:53,679 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:26:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:26:03,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1090811539] [2019-11-20 00:26:03,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:26:03,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 00:26:03,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274926768] [2019-11-20 00:26:03,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 00:26:03,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:26:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 00:26:03,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=35, Unknown=5, NotChecked=0, Total=56 [2019-11-20 00:26:03,886 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 8 states. [2019-11-20 00:26:06,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:26:06,022 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-20 00:26:06,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:26:06,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-20 00:26:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:26:06,024 INFO L225 Difference]: With dead ends: 16 [2019-11-20 00:26:06,024 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:26:06,025 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=31, Invalid=53, Unknown=6, NotChecked=0, Total=90 [2019-11-20 00:26:06,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:26:06,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:26:06,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:26:06,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:26:06,026 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-20 00:26:06,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:26:06,027 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:26:06,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 00:26:06,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:26:06,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:26:06,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:26:06,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:26:06,299 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-20 00:26:06,299 INFO L444 ceAbstractionStarter]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2019-11-20 00:26:06,300 INFO L440 ceAbstractionStarter]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc3.base|) .cse0))) [2019-11-20 00:26:06,300 INFO L444 ceAbstractionStarter]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2019-11-20 00:26:06,300 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 00:26:06,300 INFO L444 ceAbstractionStarter]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-11-20 00:26:06,301 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:26:06,301 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:26:06,301 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-20 00:26:06,301 INFO L444 ceAbstractionStarter]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2019-11-20 00:26:06,301 INFO L447 ceAbstractionStarter]: At program point L45(lines 11 46) the Hoare annotation is: true [2019-11-20 00:26:06,302 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:26:06,302 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-20 00:26:06,302 INFO L444 ceAbstractionStarter]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2019-11-20 00:26:06,302 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-11-20 00:26:06,302 INFO L440 ceAbstractionStarter]: At program point L30-2(lines 20 32) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc3.base|) .cse0))) [2019-11-20 00:26:06,303 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-20 00:26:06,303 INFO L444 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-20 00:26:06,303 INFO L444 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-11-20 00:26:06,303 INFO L444 ceAbstractionStarter]: For program point L6-4(line 6) no Hoare annotation was computed. [2019-11-20 00:26:06,307 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:556) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:256) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:213) 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) [2019-11-20 00:26:06,325 INFO L168 Benchmark]: Toolchain (without parser) took 14390.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -50.1 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:06,328 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-20 00:26:06,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.27 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:06,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:06,334 INFO L168 Benchmark]: Boogie Preprocessor took 68.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:06,341 INFO L168 Benchmark]: RCFGBuilder took 374.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:06,342 INFO L168 Benchmark]: TraceAbstraction took 13470.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:06,348 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 323.27 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 149.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 374.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13470.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...