./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/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 36029c97ff36b924dec4fff6e18b89b3177e9048 ........................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:56:46,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:46,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:46,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:46,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:46,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:46,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:46,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:46,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:46,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:46,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:46,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:46,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:46,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:46,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:46,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:46,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:46,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:46,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:46,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:46,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:46,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:46,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:46,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:46,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:46,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:46,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:46,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:46,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:46,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:46,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:46,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:46,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:46,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:46,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:46,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:46,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:46,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:46,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:46,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:46,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:46,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:56:46,601 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:46,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:46,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:46,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:46,612 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:46,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:46,613 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:46,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:46,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:46,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:46,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:46,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:46,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:46,615 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:46,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:46,616 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:46,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:46,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:46,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:46,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:46,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:46,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:46,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:46,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:46,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:46,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:46,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:56:46,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:46,619 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_37103d1a-3020-42cb-975b-d19923b72ac8/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 -> 36029c97ff36b924dec4fff6e18b89b3177e9048 [2019-11-25 08:56:46,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:46,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:46,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:46,769 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:46,769 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:46,770 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test21-2.c [2019-11-25 08:56:46,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/data/cf98cfb59/266b10fd6358447aa87c9c1b4fc731f5/FLAG3a03f0c4a [2019-11-25 08:56:47,220 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:47,221 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/sv-benchmarks/c/ldv-regression/test21-2.c [2019-11-25 08:56:47,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/data/cf98cfb59/266b10fd6358447aa87c9c1b4fc731f5/FLAG3a03f0c4a [2019-11-25 08:56:47,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/data/cf98cfb59/266b10fd6358447aa87c9c1b4fc731f5 [2019-11-25 08:56:47,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:47,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:47,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:47,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:47,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:47,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb17a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47, skipping insertion in model container [2019-11-25 08:56:47,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:47,277 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:47,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:47,504 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:47,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:47,548 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:47,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47 WrapperNode [2019-11-25 08:56:47,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:47,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:47,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:47,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:47,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:47,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:47,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:47,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:47,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... [2019-11-25 08:56:47,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:47,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:47,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:47,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:47,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:56:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:56:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:47,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:56:47,987 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:47,987 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:56:47,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:47 BoogieIcfgContainer [2019-11-25 08:56:47,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:47,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:47,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:47,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:47,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:47" (1/3) ... [2019-11-25 08:56:47,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173fdeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:47, skipping insertion in model container [2019-11-25 08:56:47,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:47" (2/3) ... [2019-11-25 08:56:47,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173fdeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:47, skipping insertion in model container [2019-11-25 08:56:47,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:47" (3/3) ... [2019-11-25 08:56:47,995 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-2.c [2019-11-25 08:56:48,006 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:48,013 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:56:48,023 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:56:48,048 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:48,048 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:48,048 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:48,048 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:48,048 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:48,049 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:48,049 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:48,049 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:48,063 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-25 08:56:48,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:56:48,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:48,071 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:48,072 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:48,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:48,077 INFO L82 PathProgramCache]: Analyzing trace with hash 167538580, now seen corresponding path program 1 times [2019-11-25 08:56:48,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:48,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969692313] [2019-11-25 08:56:48,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:48,284 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:48,285 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:56:48,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:48 BoogieIcfgContainer [2019-11-25 08:56:48,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:48,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:48,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:48,319 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:48,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:47" (3/4) ... [2019-11-25 08:56:48,322 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:56:48,369 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_37103d1a-3020-42cb-975b-d19923b72ac8/bin/uautomizer/witness.graphml [2019-11-25 08:56:48,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:48,371 INFO L168 Benchmark]: Toolchain (without parser) took 1126.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -130.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:48,372 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:48,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:48,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:48,373 INFO L168 Benchmark]: Boogie Preprocessor took 21.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:48,374 INFO L168 Benchmark]: RCFGBuilder took 382.96 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:48,375 INFO L168 Benchmark]: TraceAbstraction took 328.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:48,375 INFO L168 Benchmark]: Witness Printer took 50.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:48,378 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 301.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 382.96 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 328.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Witness Printer took 50.70 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 42]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] struct dummy d1, d2; VAL [d1={2:0}, d2={3:0}] [L13] d1.a = __VERIFIER_nondet_int() [L14] d1.b = __VERIFIER_nondet_int() [L16] d2.a = __VERIFIER_nondet_int() [L17] d2.b = __VERIFIER_nondet_int() [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [d1={2:0}, d2={3:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [d1={2:0}, d2={3:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L34] COND TRUE pd1 != 0 && pd1 == pd2 [L27] EXPR s1->a [L27] EXPR s2->b [L27] return s1->a == s2->b; [L35] COND TRUE !check(pd1, pd2) [L42] __VERIFIER_error() VAL [d1={2:0}, d2={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 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=18occurred 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, 13 NumberOfCodeBlocks, 13 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...