./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test30-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test30-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 dbf4229fc71e086a20df7dc549a8cc43d35a83d5 ......................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-27 23:53:33,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:53:33,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:53:33,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:53:33,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:53:33,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:53:33,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:53:33,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:53:33,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:53:33,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:53:33,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:53:33,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:53:33,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:53:33,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:53:33,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:53:33,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:53:33,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:53:33,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:53:33,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:53:33,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:53:33,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:53:33,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:53:33,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:53:33,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:53:33,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:53:33,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:53:33,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:53:33,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:53:34,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:53:34,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:53:34,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:53:34,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:53:34,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:53:34,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:53:34,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:53:34,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:53:34,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:53:34,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:53:34,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:53:34,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:53:34,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:53:34,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:53:34,023 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:53:34,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:53:34,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:53:34,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:53:34,026 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:53:34,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:53:34,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:53:34,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:53:34,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:53:34,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:53:34,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:53:34,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:53:34,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:53:34,028 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:53:34,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:53:34,029 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:53:34,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:53:34,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:53:34,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:53:34,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:53:34,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:53:34,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:53:34,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:53:34,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:53:34,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:53:34,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:53:34,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:53:34,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:53:34,032 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> dbf4229fc71e086a20df7dc549a8cc43d35a83d5 [2019-11-27 23:53:34,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:53:34,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:53:34,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:53:34,361 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:53:34,362 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:53:34,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test30-2.c [2019-11-27 23:53:34,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73191047c/7c9dbeba496949f1bbd323facb5e8bfa/FLAGf71af5f67 [2019-11-27 23:53:34,861 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:53:34,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test30-2.c [2019-11-27 23:53:34,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73191047c/7c9dbeba496949f1bbd323facb5e8bfa/FLAGf71af5f67 [2019-11-27 23:53:35,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73191047c/7c9dbeba496949f1bbd323facb5e8bfa [2019-11-27 23:53:35,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:53:35,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:53:35,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:53:35,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:53:35,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:53:35,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69923c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35, skipping insertion in model container [2019-11-27 23:53:35,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:53:35,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:53:35,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:53:35,514 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:53:35,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:53:35,555 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:53:35,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35 WrapperNode [2019-11-27 23:53:35,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:53:35,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:53:35,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:53:35,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:53:35,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:53:35,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:53:35,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:53:35,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:53:35,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... [2019-11-27 23:53:35,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:53:35,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:53:35,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:53:35,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:53:35,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:53:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-27 23:53:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-27 23:53:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-27 23:53:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:53:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:53:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:53:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:53:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:53:35,966 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:53:35,967 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-27 23:53:35,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:35 BoogieIcfgContainer [2019-11-27 23:53:35,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:53:35,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:53:35,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:53:35,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:53:35,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:53:35" (1/3) ... [2019-11-27 23:53:35,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a24090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:53:35, skipping insertion in model container [2019-11-27 23:53:35,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:35" (2/3) ... [2019-11-27 23:53:35,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a24090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:53:35, skipping insertion in model container [2019-11-27 23:53:36,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:35" (3/3) ... [2019-11-27 23:53:36,004 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-2.c [2019-11-27 23:53:36,034 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:53:36,051 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:53:36,064 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:53:36,090 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:53:36,090 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:53:36,090 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:53:36,091 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:53:36,091 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:53:36,091 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:53:36,091 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:53:36,091 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:53:36,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-27 23:53:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-27 23:53:36,109 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:53:36,109 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-27 23:53:36,110 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:53:36,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:53:36,116 INFO L82 PathProgramCache]: Analyzing trace with hash 889475945, now seen corresponding path program 1 times [2019-11-27 23:53:36,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:53:36,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195221289] [2019-11-27 23:53:36,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:53:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:53:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:53:36,349 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:53:36,349 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:53:36,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:53:36 BoogieIcfgContainer [2019-11-27 23:53:36,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:53:36,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:53:36,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:53:36,420 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:53:36,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:35" (3/4) ... [2019-11-27 23:53:36,423 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 23:53:36,510 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:53:36,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:53:36,513 INFO L168 Benchmark]: Toolchain (without parser) took 1242.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:36,514 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:36,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.47 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:36,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:36,517 INFO L168 Benchmark]: Boogie Preprocessor took 22.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:36,518 INFO L168 Benchmark]: RCFGBuilder took 291.84 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:36,519 INFO L168 Benchmark]: TraceAbstraction took 446.96 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:36,524 INFO L168 Benchmark]: Witness Printer took 91.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:36,538 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.47 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 291.84 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 446.96 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 91.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3] int a = 1, b; [L5-L7] struct dummy { int *a, *b; } global = {&a, &b}; VAL [a={5:0}, b={2:0}, global={3:0}] [L21] struct dummy *pd = &global; [L16] \read(**pb) [L16] \read(**pb) [L11] EXPR \read(*pb) [L11] *pa = *pb [L25] EXPR \read(a) [L25] EXPR \read(b) VAL [a={5:0}, b={2:0}, global={3:0}] [L25] COND TRUE a != b [L31] __VERIFIER_error() VAL [a={5:0}, b={2:0}, global={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...