./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/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 278390a66d79c26df0bb9007834f9da647c0b479 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:51,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:51,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:51,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:51,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:51,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:51,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:51,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:51,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:51,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:51,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:51,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:51,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:51,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:51,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:51,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:51,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:51,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:51,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:51,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:51,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:51,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:51,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:51,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:51,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:51,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:51,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:51,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:51,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:51,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:51,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:51,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:51,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:51,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:51,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:51,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:51,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:51,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:51,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:51,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:51,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:51,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:51,116 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:51,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:51,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:51,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:51,118 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:51,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:51,119 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:51,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:51,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:51,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:51,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:51,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:51,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:51,120 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:51,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:51,121 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:51,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:51,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:51,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:51,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:51,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:51,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:51,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:51,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:51,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:51,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:51,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:51,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:51,124 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/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/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 -> 278390a66d79c26df0bb9007834f9da647c0b479 [2019-10-22 08:58:51,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:51,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:51,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:51,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:51,169 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:51,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2019-10-22 08:58:51,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/data/34d938711/502bf87181cf49a78d9610a3de7ac131/FLAGddcdab624 [2019-10-22 08:58:51,692 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:51,692 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/sv-benchmarks/c/ldv-sets/test_add-1.i [2019-10-22 08:58:51,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/data/34d938711/502bf87181cf49a78d9610a3de7ac131/FLAGddcdab624 [2019-10-22 08:58:52,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/data/34d938711/502bf87181cf49a78d9610a3de7ac131 [2019-10-22 08:58:52,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:52,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:52,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:52,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:52,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:52,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27dcadbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52, skipping insertion in model container [2019-10-22 08:58:52,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,219 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:52,266 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:52,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:52,662 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:52,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:52,775 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:52,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52 WrapperNode [2019-10-22 08:58:52,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:52,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:52,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:52,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:52,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:52,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:52,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:52,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:52,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... [2019-10-22 08:58:52,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:52,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:52,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:52,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:52,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/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 [2019-10-22 08:58:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:53,384 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:53,384 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-10-22 08:58:53,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:53 BoogieIcfgContainer [2019-10-22 08:58:53,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:53,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:53,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:53,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:53,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:52" (1/3) ... [2019-10-22 08:58:53,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae39e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:53, skipping insertion in model container [2019-10-22 08:58:53,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:52" (2/3) ... [2019-10-22 08:58:53,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae39e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:53, skipping insertion in model container [2019-10-22 08:58:53,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:53" (3/3) ... [2019-10-22 08:58:53,393 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2019-10-22 08:58:53,404 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:53,412 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:53,423 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:53,446 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:53,446 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:53,447 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:53,447 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:53,447 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:53,447 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:53,447 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:53,447 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 08:58:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:58:53,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:53,474 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:53,476 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:53,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,482 INFO L82 PathProgramCache]: Analyzing trace with hash -923442845, now seen corresponding path program 1 times [2019-10-22 08:58:53,488 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563477929] [2019-10-22 08:58:53,488 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:53,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563477929] [2019-10-22 08:58:53,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:53,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:53,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470921992] [2019-10-22 08:58:53,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:58:53,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:53,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:58:53,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:58:53,642 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-10-22 08:58:53,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:53,656 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-10-22 08:58:53,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:58:53,657 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-22 08:58:53,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:53,666 INFO L225 Difference]: With dead ends: 41 [2019-10-22 08:58:53,666 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 08:58:53,669 INFO L600 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 [2019-10-22 08:58:53,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 08:58:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 08:58:53,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:58:53,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-10-22 08:58:53,708 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2019-10-22 08:58:53,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:53,709 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-10-22 08:58:53,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:58:53,709 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-22 08:58:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:58:53,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:53,710 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:53,710 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:53,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1228046979, now seen corresponding path program 1 times [2019-10-22 08:58:53,711 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195548823] [2019-10-22 08:58:53,711 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,711 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:53,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195548823] [2019-10-22 08:58:53,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:53,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:53,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243711341] [2019-10-22 08:58:53,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:53,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:53,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:53,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:53,798 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 4 states. [2019-10-22 08:58:53,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:53,841 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2019-10-22 08:58:53,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:53,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-22 08:58:53,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:53,843 INFO L225 Difference]: With dead ends: 37 [2019-10-22 08:58:53,843 INFO L226 Difference]: Without dead ends: 28 [2019-10-22 08:58:53,844 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:53,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-22 08:58:53,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2019-10-22 08:58:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 08:58:53,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-10-22 08:58:53,848 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2019-10-22 08:58:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:53,848 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-10-22 08:58:53,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-10-22 08:58:53,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:58:53,849 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:53,849 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:53,849 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:53,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1885213511, now seen corresponding path program 1 times [2019-10-22 08:58:53,850 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,850 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898053817] [2019-10-22 08:58:53,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:53,893 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898053817] [2019-10-22 08:58:53,894 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:53,894 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:53,894 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963541771] [2019-10-22 08:58:53,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:53,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:53,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:53,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:53,895 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 4 states. [2019-10-22 08:58:53,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:53,942 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-10-22 08:58:53,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:53,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-22 08:58:53,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:53,943 INFO L225 Difference]: With dead ends: 28 [2019-10-22 08:58:53,943 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 08:58:53,944 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:53,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 08:58:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-10-22 08:58:53,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-22 08:58:53,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-10-22 08:58:53,949 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2019-10-22 08:58:53,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:53,949 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-10-22 08:58:53,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:53,949 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-10-22 08:58:53,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:58:53,950 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:53,950 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:53,950 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:53,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1883604797, now seen corresponding path program 1 times [2019-10-22 08:58:53,951 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937111581] [2019-10-22 08:58:53,951 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,951 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:54,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:54,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937111581] [2019-10-22 08:58:54,063 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:54,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:54,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335875813] [2019-10-22 08:58:54,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:54,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:54,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:54,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:54,065 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2019-10-22 08:58:54,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:54,128 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2019-10-22 08:58:54,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:54,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-22 08:58:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:54,129 INFO L225 Difference]: With dead ends: 34 [2019-10-22 08:58:54,129 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 08:58:54,129 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:54,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 08:58:54,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-22 08:58:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 08:58:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-10-22 08:58:54,132 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2019-10-22 08:58:54,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:54,133 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-10-22 08:58:54,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-10-22 08:58:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:58:54,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:54,133 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:54,134 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:54,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:54,134 INFO L82 PathProgramCache]: Analyzing trace with hash 2055661832, now seen corresponding path program 1 times [2019-10-22 08:58:54,135 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:54,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067101172] [2019-10-22 08:58:54,135 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,135 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,259 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:54,259 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:54,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:54 BoogieIcfgContainer [2019-10-22 08:58:54,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:54,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:54,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:54,303 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:54,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:53" (3/4) ... [2019-10-22 08:58:54,306 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:58:54,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7585bf7d-63c5-4bc1-878a-ba9373bdcdd9/bin/uautomizer/witness.graphml [2019-10-22 08:58:54,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:54,363 INFO L168 Benchmark]: Toolchain (without parser) took 2167.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.0 GB in the end (delta: -74.0 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:54,363 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:54,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:54,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.56 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:54,365 INFO L168 Benchmark]: Boogie Preprocessor took 29.06 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:54,365 INFO L168 Benchmark]: RCFGBuilder took 529.55 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:54,366 INFO L168 Benchmark]: TraceAbstraction took 915.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:54,366 INFO L168 Benchmark]: Witness Printer took 58.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:54,369 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 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.56 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.06 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 529.55 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 915.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. * Witness Printer took 58.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 654]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L649] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={-1:0}] [L652] int j = __VERIFIER_nondet_int(); [L638] struct ldv_list_element *m; [L639] EXPR (s)->next [L639] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L639] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-1:0}] [L639] COND FALSE !(&m->list != (s)) VAL [s1={-1:0}] [L644] return 0; VAL [s1={-1:0}] [L620] COND TRUE !ldv_is_in_set(new, s) [L621] struct ldv_list_element *le; [L563] void *ptr = malloc(size); [L565] return ptr; VAL [s1={-1:0}] [L622] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L623] le->e = new [L592] head->next [L580] next->prev = new [L581] new->next = next [L582] new->prev = prev [L583] prev->next = new VAL [s1={-1:0}] [L638] struct ldv_list_element *m; [L639] EXPR (s)->next [L639] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L639] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-1:0}] [L639] COND TRUE &m->list != (s) [L640] EXPR m->e VAL [s1={-1:0}] [L640] COND TRUE m->e == e [L641] return 1; VAL [s1={-1:0}] [L654] COND TRUE ldv_is_in_set(j, &s1) [L654] __VERIFIER_error() VAL [s1={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 83 SDtfs, 19 SDslu, 82 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...