./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test30-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a041130dd25405b7b6d6206fce11b7a492bd0bd .................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-29 22:10:08,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:10:08,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:10:08,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:10:08,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:10:08,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:10:08,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:10:08,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:10:08,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:10:08,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:10:08,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:10:08,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:10:08,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:10:08,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:10:08,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:10:08,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:10:08,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:10:08,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:10:08,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:10:08,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:10:08,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:10:08,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:10:08,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:10:08,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:10:08,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:10:08,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:10:08,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:10:08,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:10:08,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:10:08,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:10:08,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:10:08,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:10:08,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:10:08,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:10:08,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:10:08,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:10:08,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:10:08,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:10:08,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:10:08,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:10:08,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:10:08,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:10:08,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:10:08,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:10:08,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:10:08,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:10:08,636 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:10:08,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:10:08,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:10:08,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:10:08,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:10:08,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:10:08,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:10:08,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:10:08,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:10:08,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:10:08,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:10:08,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:10:08,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:10:08,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:10:08,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:10:08,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:10:08,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:10:08,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:10:08,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:10:08,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:10:08,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:10:08,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:10:08,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:10:08,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:10:08,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:10:08,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a041130dd25405b7b6d6206fce11b7a492bd0bd [2020-11-29 22:10:08,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:10:09,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:10:09,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:10:09,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:10:09,015 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:10:09,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test30-2.c [2020-11-29 22:10:09,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/data/c0a32dbdc/6d09825068274f1db69b54e0a752a799/FLAGf59c33e83 [2020-11-29 22:10:09,659 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:10:09,659 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/sv-benchmarks/c/ldv-regression/test30-2.c [2020-11-29 22:10:09,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/data/c0a32dbdc/6d09825068274f1db69b54e0a752a799/FLAGf59c33e83 [2020-11-29 22:10:10,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/data/c0a32dbdc/6d09825068274f1db69b54e0a752a799 [2020-11-29 22:10:10,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:10:10,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:10:10,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:10:10,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:10:10,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:10:10,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff9a03f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10, skipping insertion in model container [2020-11-29 22:10:10,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:10:10,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:10:10,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:10:10,273 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:10:10,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:10:10,323 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:10:10,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10 WrapperNode [2020-11-29 22:10:10,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:10:10,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:10:10,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:10:10,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:10:10,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:10:10,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:10:10,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:10:10,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:10:10,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... [2020-11-29 22:10:10,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:10:10,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:10:10,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:10:10,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:10:10,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/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 [2020-11-29 22:10:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 22:10:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 22:10:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:10:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:10:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:10:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:10:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:10:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:10:10,795 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:10:10,795 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 22:10:10,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:10 BoogieIcfgContainer [2020-11-29 22:10:10,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:10:10,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:10:10,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:10:10,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:10:10,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:10:10" (1/3) ... [2020-11-29 22:10:10,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5e75ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:10:10, skipping insertion in model container [2020-11-29 22:10:10,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:10" (2/3) ... [2020-11-29 22:10:10,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5e75ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:10:10, skipping insertion in model container [2020-11-29 22:10:10,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:10" (3/3) ... [2020-11-29 22:10:10,806 INFO L111 eAbstractionObserver]: Analyzing ICFG test30-2.c [2020-11-29 22:10:10,817 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:10:10,821 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:10:10,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:10:10,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:10:10,856 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:10:10,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:10:10,857 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:10:10,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:10:10,857 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:10:10,857 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:10:10,857 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:10:10,870 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-29 22:10:10,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 22:10:10,874 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:10,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:10:10,875 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:10,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:10,881 INFO L82 PathProgramCache]: Analyzing trace with hash 889475945, now seen corresponding path program 1 times [2020-11-29 22:10:10,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:10,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34361469] [2020-11-29 22:10:10,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:10:11,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:10:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:10:11,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:10:11,233 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:10:11,233 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:10:11,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:10:11,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:10:11 BoogieIcfgContainer [2020-11-29 22:10:11,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:10:11,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:10:11,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:10:11,295 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:10:11,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:10" (3/4) ... [2020-11-29 22:10:11,297 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:10:11,351 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_97d2215a-2d21-4a7f-b4d9-0a4c8a96de00/bin/uautomizer/witness.graphml [2020-11-29 22:10:11,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:10:11,353 INFO L168 Benchmark]: Toolchain (without parser) took 1325.16 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 38.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:11,354 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:10:11,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.41 ms. Allocated memory is still 96.5 MB. Free memory was 57.8 MB in the beginning and 72.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:11,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.62 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:11,356 INFO L168 Benchmark]: Boogie Preprocessor took 46.37 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 69.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:10:11,357 INFO L168 Benchmark]: RCFGBuilder took 375.73 ms. Allocated memory is still 96.5 MB. Free memory was 69.6 MB in the beginning and 55.6 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:11,358 INFO L168 Benchmark]: TraceAbstraction took 489.77 ms. Allocated memory is still 96.5 MB. Free memory was 55.0 MB in the beginning and 40.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:11,359 INFO L168 Benchmark]: Witness Printer took 56.53 ms. Allocated memory is still 96.5 MB. Free memory was 40.0 MB in the beginning and 38.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:11,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.41 ms. Allocated memory is still 96.5 MB. Free memory was 57.8 MB in the beginning and 72.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.62 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.37 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 69.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 375.73 ms. Allocated memory is still 96.5 MB. Free memory was 69.6 MB in the beginning and 55.6 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 489.77 ms. Allocated memory is still 96.5 MB. Free memory was 55.0 MB in the beginning and 40.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 56.53 ms. Allocated memory is still 96.5 MB. Free memory was 40.0 MB in the beginning and 38.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L5] int a = 1, b; [L7-L9] struct dummy { int *a, *b; } global = {&a, &b}; VAL [a={6:0}, b={3:0}, global={5:0}] [L23] struct dummy *pd = &global; [L18] \read(**pb) [L18] \read(**pb) [L13] EXPR \read(*pb) [L13] *pa = *pb [L27] EXPR \read(a) [L27] EXPR \read(b) VAL [a={6:0}, b={3:0}, global={5:0}] [L27] COND TRUE a != b [L3] __assert_fail("0", "test30-2.c", 3, "reach_error") VAL [a={6:0}, b={3:0}, global={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0.1s 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...