./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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 0.1.24-6b5699a [2019-11-25 08:53:28,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:28,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:28,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:28,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:28,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:28,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:28,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:28,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:28,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:28,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:28,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:28,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:28,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:28,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:28,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:28,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:28,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:28,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:28,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:28,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:28,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:28,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:28,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:28,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:28,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:28,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:28,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:28,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:28,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:28,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:28,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:28,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:28,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:28,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:28,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:28,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:28,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:28,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:28,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:28,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:28,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:53:28,174 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:28,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:28,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:28,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:28,175 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:28,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:28,176 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:28,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:28,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:28,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:28,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:28,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:28,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:28,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:28,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:28,178 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:28,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:28,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:28,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:28,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:28,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:28,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:28,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:28,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:28,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:28,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:28,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:53:28,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:28,181 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_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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 [2019-11-25 08:53:28,357 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:28,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:28,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:28,373 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:28,373 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:28,374 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-25 08:53:28,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/a9606ea80/145712197331471f910495b8253149dd/FLAG03824898e [2019-11-25 08:53:28,771 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:28,772 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-25 08:53:28,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/a9606ea80/145712197331471f910495b8253149dd/FLAG03824898e [2019-11-25 08:53:29,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/a9606ea80/145712197331471f910495b8253149dd [2019-11-25 08:53:29,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:29,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:29,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:29,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:29,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:29,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a64857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29, skipping insertion in model container [2019-11-25 08:53:29,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:29,220 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:29,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:29,457 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:29,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:29,599 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:29,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29 WrapperNode [2019-11-25 08:53:29,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:29,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:29,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:29,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:29,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:29,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:29,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:29,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:29,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... [2019-11-25 08:53:29,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:29,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:29,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:29,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:29,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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 08:53:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:53:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:53:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:30,091 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:30,091 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:53:30,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:30 BoogieIcfgContainer [2019-11-25 08:53:30,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:30,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:30,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:30,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:30,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:29" (1/3) ... [2019-11-25 08:53:30,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eff5213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:30, skipping insertion in model container [2019-11-25 08:53:30,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:29" (2/3) ... [2019-11-25 08:53:30,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eff5213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:30, skipping insertion in model container [2019-11-25 08:53:30,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:30" (3/3) ... [2019-11-25 08:53:30,100 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-25 08:53:30,108 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:30,114 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 08:53:30,121 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 08:53:30,137 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:30,138 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:30,138 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:30,138 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:30,138 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:30,138 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:30,138 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:30,138 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:30,151 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-25 08:53:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-25 08:53:30,159 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:30,160 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:30,160 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:30,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:30,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-25 08:53:30,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:30,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161586884] [2019-11-25 08:53:30,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:30,289 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 08:53:30,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161586884] [2019-11-25 08:53:30,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:30,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:53:30,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553713347] [2019-11-25 08:53:30,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:53:30,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:30,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:53:30,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:30,306 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-25 08:53:30,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:30,320 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-25 08:53:30,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:53:30,321 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-25 08:53:30,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:30,328 INFO L225 Difference]: With dead ends: 35 [2019-11-25 08:53:30,328 INFO L226 Difference]: Without dead ends: 16 [2019-11-25 08:53:30,331 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 08:53:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-25 08:53:30,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-25 08:53:30,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:53:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-25 08:53:30,358 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-25 08:53:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:30,358 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-25 08:53:30,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:53:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-25 08:53:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-25 08:53:30,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:30,359 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:30,359 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:30,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:30,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-25 08:53:30,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:30,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231948626] [2019-11-25 08:53:30,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:30,426 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (const Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1315) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1196) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.TermTransferrer.convertApplicationTerm(TermTransferrer.java:182) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:573) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:171) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:202) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.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 08:53:30,431 INFO L168 Benchmark]: Toolchain (without parser) took 1246.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:30,431 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:30,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -199.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:30,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.64 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 08:53:30,433 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 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 08:53:30,433 INFO L168 Benchmark]: RCFGBuilder took 420.39 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:30,434 INFO L168 Benchmark]: TraceAbstraction took 335.89 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:30,437 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -199.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.64 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 26.04 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 420.39 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 335.89 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: 21.5 MB). Peak memory consumption was 21.5 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 0.1.24-6b5699a [2019-11-25 08:53:32,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:32,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:32,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:32,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:32,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:32,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:32,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:32,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:32,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:32,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:32,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:32,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:32,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:32,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:32,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:32,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:32,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:32,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:32,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:32,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:32,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:32,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:32,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:32,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:32,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:32,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:32,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:32,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:32,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:32,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:32,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:32,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:32,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:32,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:32,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:32,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:32,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:32,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:32,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:32,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:32,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:53:32,279 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:32,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:32,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:32,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:32,280 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:32,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:32,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:32,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:32,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:32,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:32,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:32,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:32,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:53:32,282 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:53:32,282 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:53:32,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:32,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:32,283 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:32,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:32,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:32,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:32,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:32,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:32,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:32,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:32,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:32,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:32,284 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:53:32,284 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:53:32,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:32,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:53:32,285 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_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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 [2019-11-25 08:53:32,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:32,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:32,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:32,640 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:32,641 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:32,641 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-25 08:53:32,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/bdecae962/44e0b444f5814256a8433091674fc4ee/FLAGa964c85d4 [2019-11-25 08:53:33,084 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:33,084 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-25 08:53:33,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/bdecae962/44e0b444f5814256a8433091674fc4ee/FLAGa964c85d4 [2019-11-25 08:53:33,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/bin/uautomizer/data/bdecae962/44e0b444f5814256a8433091674fc4ee [2019-11-25 08:53:33,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:33,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:33,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:33,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:33,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:33,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cff7556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33, skipping insertion in model container [2019-11-25 08:53:33,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:33,552 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:33,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:33,710 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:33,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:33,749 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:33,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33 WrapperNode [2019-11-25 08:53:33,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:33,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:33,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:33,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:33,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:33,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:33,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:33,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:33,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:33,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:33,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:33,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:33,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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 08:53:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:53:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:53:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:34,224 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:34,225 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:53:34,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:34 BoogieIcfgContainer [2019-11-25 08:53:34,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:34,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:34,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:34,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:34,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:33" (1/3) ... [2019-11-25 08:53:34,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faecf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:34, skipping insertion in model container [2019-11-25 08:53:34,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (2/3) ... [2019-11-25 08:53:34,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faecf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:34, skipping insertion in model container [2019-11-25 08:53:34,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:34" (3/3) ... [2019-11-25 08:53:34,232 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-25 08:53:34,241 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:34,247 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 08:53:34,254 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 08:53:34,274 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:34,274 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:34,274 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:34,274 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:34,274 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:34,275 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:34,275 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:34,275 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-25 08:53:34,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-25 08:53:34,291 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:34,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:34,292 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:34,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-25 08:53:34,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:34,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1379009187] [2019-11-25 08:53:34,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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 08:53:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:34,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:53:34,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:34,402 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 08:53:34,402 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:34,405 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 08:53:34,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1379009187] [2019-11-25 08:53:34,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:34,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:53:34,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794207094] [2019-11-25 08:53:34,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:53:34,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:34,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:53:34,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:34,422 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-25 08:53:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:34,435 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-25 08:53:34,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:53:34,436 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-25 08:53:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:34,445 INFO L225 Difference]: With dead ends: 35 [2019-11-25 08:53:34,445 INFO L226 Difference]: Without dead ends: 16 [2019-11-25 08:53:34,448 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 [2019-11-25 08:53:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-25 08:53:34,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-25 08:53:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:53:34,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-25 08:53:34,473 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-25 08:53:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:34,473 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-25 08:53:34,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:53:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-25 08:53:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-25 08:53:34,474 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:34,474 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:34,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:34,676 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:34,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:34,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-25 08:53:34,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:34,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [74894356] [2019-11-25 08:53:34,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_792e1904-970b-4fa1-b7f5-2e576a42ac8d/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 08:53:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:34,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:53:34,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:34,814 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 [2019-11-25 08:53:34,814 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:34,822 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:34,823 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:53:34,823 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2019-11-25 08:53:34,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:53:34,867 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 08:53:34,867 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:45,007 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 08:53:45,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [74894356] [2019-11-25 08:53:45,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:45,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:53:45,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206570454] [2019-11-25 08:53:45,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:53:45,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:45,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:53:45,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=35, Unknown=5, NotChecked=0, Total=56 [2019-11-25 08:53:45,010 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 8 states. [2019-11-25 08:53:47,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:47,106 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-25 08:53:47,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:53:47,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-25 08:53:47,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:47,108 INFO L225 Difference]: With dead ends: 16 [2019-11-25 08:53:47,108 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:53:47,109 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=31, Invalid=53, Unknown=6, NotChecked=0, Total=90 [2019-11-25 08:53:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:53:47,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:53:47,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:53:47,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:53:47,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-25 08:53:47,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:47,110 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:47,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:53:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:53:47,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:53:47,311 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:47,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:53:47,366 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-25 08:53:47,366 INFO L444 ceAbstractionStarter]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2019-11-25 08:53:47,367 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))) [2019-11-25 08:53:47,367 INFO L444 ceAbstractionStarter]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2019-11-25 08:53:47,367 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:53:47,367 INFO L444 ceAbstractionStarter]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-11-25 08:53:47,367 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:53:47,383 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:53:47,384 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-25 08:53:47,384 INFO L444 ceAbstractionStarter]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2019-11-25 08:53:47,384 INFO L447 ceAbstractionStarter]: At program point L45(lines 11 46) the Hoare annotation is: true [2019-11-25 08:53:47,384 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:53:47,384 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-25 08:53:47,384 INFO L444 ceAbstractionStarter]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2019-11-25 08:53:47,384 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-11-25 08:53:47,385 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))) [2019-11-25 08:53:47,385 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-25 08:53:47,385 INFO L444 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-25 08:53:47,385 INFO L444 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-11-25 08:53:47,385 INFO L444 ceAbstractionStarter]: For program point L6-4(line 6) no Hoare annotation was computed. [2019-11-25 08:53:47,389 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) [2019-11-25 08:53:47,392 INFO L168 Benchmark]: Toolchain (without parser) took 13869.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 960.4 MB in the beginning and 991.5 MB in the end (delta: -31.1 MB). Peak memory consumption was 53.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:47,393 INFO L168 Benchmark]: CDTParser took 0.22 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 08:53:47,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.53 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. [2019-11-25 08:53:47,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:47,395 INFO L168 Benchmark]: Boogie Preprocessor took 34.58 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:47,400 INFO L168 Benchmark]: RCFGBuilder took 347.42 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:47,402 INFO L168 Benchmark]: TraceAbstraction took 13163.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.5 MB in the end (delta: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:47,405 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.53 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 93.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.58 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 347.42 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13163.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.5 MB in the end (delta: 61.5 MB). Peak memory consumption was 61.5 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...