./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/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 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:24:13,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:24:13,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:24:13,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:24:13,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:24:13,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:24:13,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:24:13,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:24:13,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:24:13,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:24:13,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:24:13,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:24:13,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:24:13,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:24:13,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:24:13,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:24:13,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:24:13,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:24:13,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:24:13,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:24:13,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:24:13,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:24:13,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:24:13,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:24:13,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:24:13,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:24:13,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:24:13,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:24:13,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:24:13,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:24:13,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:24:13,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:24:13,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:24:13,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:24:13,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:24:13,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:24:13,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:24:13,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:24:13,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:24:13,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:24:13,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:24:13,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:24:13,110 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:24:13,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:24:13,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:24:13,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:24:13,111 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:24:13,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:24:13,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:24:13,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:24:13,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:24:13,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:24:13,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:24:13,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:24:13,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:24:13,113 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:24:13,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:24:13,113 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:24:13,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:24:13,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:24:13,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:24:13,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:24:13,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:24:13,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:24:13,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:24:13,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:24:13,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:24:13,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:24:13,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:24:13,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:24:13,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:24:13,116 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_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/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 -> 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 [2019-12-07 18:24:13,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:24:13,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:24:13,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:24:13,236 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:24:13,236 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:24:13,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-07 18:24:13,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/data/7ebf9f88c/26f9164aec4544e0b0f91433ca1eb011/FLAGe9235f326 [2019-12-07 18:24:13,730 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:24:13,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-07 18:24:13,740 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/data/7ebf9f88c/26f9164aec4544e0b0f91433ca1eb011/FLAGe9235f326 [2019-12-07 18:24:13,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/data/7ebf9f88c/26f9164aec4544e0b0f91433ca1eb011 [2019-12-07 18:24:13,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:24:13,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:24:13,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:24:13,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:24:13,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:24:13,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:24:13" (1/1) ... [2019-12-07 18:24:13,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b00ca64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:13, skipping insertion in model container [2019-12-07 18:24:13,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:24:13" (1/1) ... [2019-12-07 18:24:13,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:24:13,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:24:14,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:24:14,031 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:24:14,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:24:14,113 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:24:14,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14 WrapperNode [2019-12-07 18:24:14,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:24:14,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:24:14,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:24:14,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:24:14,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:24:14,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:24:14,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:24:14,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:24:14,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... [2019-12-07 18:24:14,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:24:14,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:24:14,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:24:14,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:24:14,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:24:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:24:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:24:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:24:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:24:14,344 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:24:14,345 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 18:24:14,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:24:14 BoogieIcfgContainer [2019-12-07 18:24:14,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:24:14,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:24:14,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:24:14,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:24:14,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:24:13" (1/3) ... [2019-12-07 18:24:14,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3e2aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:24:14, skipping insertion in model container [2019-12-07 18:24:14,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:14" (2/3) ... [2019-12-07 18:24:14,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3e2aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:24:14, skipping insertion in model container [2019-12-07 18:24:14,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:24:14" (3/3) ... [2019-12-07 18:24:14,351 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2019-12-07 18:24:14,357 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:24:14,361 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 18:24:14,368 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 18:24:14,382 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:24:14,382 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:24:14,382 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:24:14,382 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:24:14,382 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:24:14,382 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:24:14,382 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:24:14,382 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:24:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 18:24:14,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 18:24:14,394 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:24:14,395 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:24:14,395 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:24:14,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:14,399 INFO L82 PathProgramCache]: Analyzing trace with hash 119352108, now seen corresponding path program 1 times [2019-12-07 18:24:14,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:14,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172266189] [2019-12-07 18:24:14,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:14,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:14,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172266189] [2019-12-07 18:24:14,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:24:14,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:24:14,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33901422] [2019-12-07 18:24:14,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:24:14,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:24:14,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:24:14,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:24:14,522 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-12-07 18:24:14,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:14,547 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2019-12-07 18:24:14,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:24:14,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 18:24:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:24:14,554 INFO L225 Difference]: With dead ends: 39 [2019-12-07 18:24:14,554 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 18:24:14,557 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:24:14,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 18:24:14,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-12-07 18:24:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:24:14,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-12-07 18:24:14,579 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2019-12-07 18:24:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:24:14,579 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-12-07 18:24:14,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:24:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-12-07 18:24:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 18:24:14,580 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:24:14,580 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:24:14,580 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:24:14,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:14,581 INFO L82 PathProgramCache]: Analyzing trace with hash 176610410, now seen corresponding path program 1 times [2019-12-07 18:24:14,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:14,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78726848] [2019-12-07 18:24:14,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:14,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78726848] [2019-12-07 18:24:14,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:24:14,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:24:14,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350201872] [2019-12-07 18:24:14,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:24:14,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:24:14,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:24:14,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:24:14,607 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-12-07 18:24:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:14,611 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-12-07 18:24:14,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:24:14,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 18:24:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:24:14,612 INFO L225 Difference]: With dead ends: 25 [2019-12-07 18:24:14,612 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 18:24:14,613 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:24:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 18:24:14,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 18:24:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 18:24:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-12-07 18:24:14,615 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2019-12-07 18:24:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:24:14,615 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-12-07 18:24:14,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:24:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-12-07 18:24:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:24:14,616 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:24:14,616 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:24:14,616 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:24:14,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:14,616 INFO L82 PathProgramCache]: Analyzing trace with hash -262109109, now seen corresponding path program 1 times [2019-12-07 18:24:14,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:14,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762373784] [2019-12-07 18:24:14,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:14,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762373784] [2019-12-07 18:24:14,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:24:14,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:24:14,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374429906] [2019-12-07 18:24:14,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:24:14,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:24:14,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:24:14,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:24:14,653 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-12-07 18:24:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:14,686 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-12-07 18:24:14,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:24:14,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 18:24:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:24:14,686 INFO L225 Difference]: With dead ends: 19 [2019-12-07 18:24:14,687 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 18:24:14,687 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:24:14,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 18:24:14,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 18:24:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 18:24:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2019-12-07 18:24:14,689 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2019-12-07 18:24:14,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:24:14,689 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2019-12-07 18:24:14,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:24:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2019-12-07 18:24:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:24:14,689 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:24:14,690 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:24:14,690 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:24:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:14,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1912419270, now seen corresponding path program 1 times [2019-12-07 18:24:14,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:14,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401615824] [2019-12-07 18:24:14,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:14,725 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:14,725 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:24:14,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:24:14 BoogieIcfgContainer [2019-12-07 18:24:14,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:24:14,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:24:14,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:24:14,749 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:24:14,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:24:14" (3/4) ... [2019-12-07 18:24:14,750 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:24:14,782 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bdf99c5c-ba30-4c88-aa83-28b8e85d8a11/bin/uautomizer/witness.graphml [2019-12-07 18:24:14,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:24:14,783 INFO L168 Benchmark]: Toolchain (without parser) took 1030.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 940.8 MB in the beginning and 990.6 MB in the end (delta: -49.7 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:14,783 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:14,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -120.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:14,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.61 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:14,785 INFO L168 Benchmark]: Boogie Preprocessor took 15.08 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:14,785 INFO L168 Benchmark]: RCFGBuilder took 185.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:14,786 INFO L168 Benchmark]: TraceAbstraction took 401.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 993.8 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:14,786 INFO L168 Benchmark]: Witness Printer took 33.38 ms. Allocated memory is still 1.1 GB. Free memory was 993.8 MB in the beginning and 990.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:14,788 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 360.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -120.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.61 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.08 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 401.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 993.8 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. * Witness Printer took 33.38 ms. Allocated memory is still 1.1 GB. Free memory was 993.8 MB in the beginning and 990.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; VAL [globalState=0] [L1619] void *retVal = malloc(size); VAL [globalState=0] [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 VAL [globalState=1] [L1622] return retVal; VAL [globalState=1] [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=1] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=1] [L1630] globalState = 0 [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=0] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L1601] __VERIFIER_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 33 SDslu, 21 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...