./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 ......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-02 00:25:10,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 00:25:10,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 00:25:10,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 00:25:10,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 00:25:10,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 00:25:10,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 00:25:10,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 00:25:10,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 00:25:10,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 00:25:10,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 00:25:10,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 00:25:10,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 00:25:10,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 00:25:10,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 00:25:10,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 00:25:10,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 00:25:10,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 00:25:10,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 00:25:10,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 00:25:10,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 00:25:10,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 00:25:10,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 00:25:10,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 00:25:10,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 00:25:10,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 00:25:10,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 00:25:10,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 00:25:10,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 00:25:10,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 00:25:10,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 00:25:10,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 00:25:10,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 00:25:10,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 00:25:10,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 00:25:10,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 00:25:10,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 00:25:10,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 00:25:10,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 00:25:10,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 00:25:10,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 00:25:10,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-02 00:25:10,863 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 00:25:10,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 00:25:10,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-02 00:25:10,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-02 00:25:10,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 00:25:10,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 00:25:10,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 00:25:10,865 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-02 00:25:10,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 00:25:10,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-02 00:25:10,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 00:25:10,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-02 00:25:10,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 00:25:10,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-02 00:25:10,866 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-02 00:25:10,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-02 00:25:10,866 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 00:25:10,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-02 00:25:10,866 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 00:25:10,867 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 00:25:10,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 00:25:10,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 00:25:10,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 00:25:10,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 00:25:10,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 00:25:10,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-02 00:25:10,867 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 00:25:10,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 00:25:10,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-02 00:25:10,868 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_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak 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 -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 [2019-12-02 00:25:10,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 00:25:10,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 00:25:10,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 00:25:10,982 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 00:25:10,982 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 00:25:10,983 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/../../sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-02 00:25:11,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/data/0fb973cd5/89807df1d39d4a57959514e2da1af2be/FLAG987a42d52 [2019-12-02 00:25:11,452 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 00:25:11,453 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-02 00:25:11,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/data/0fb973cd5/89807df1d39d4a57959514e2da1af2be/FLAG987a42d52 [2019-12-02 00:25:11,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/data/0fb973cd5/89807df1d39d4a57959514e2da1af2be [2019-12-02 00:25:11,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 00:25:11,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 00:25:11,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 00:25:11,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 00:25:11,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 00:25:11,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb9d963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11, skipping insertion in model container [2019-12-02 00:25:11,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 00:25:11,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 00:25:11,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:25:11,773 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 00:25:11,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:25:11,854 INFO L208 MainTranslator]: Completed translation [2019-12-02 00:25:11,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11 WrapperNode [2019-12-02 00:25:11,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 00:25:11,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 00:25:11,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 00:25:11,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 00:25:11,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 00:25:11,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 00:25:11,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 00:25:11,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 00:25:11,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... [2019-12-02 00:25:11,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 00:25:11,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 00:25:11,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 00:25:11,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 00:25:11,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:25:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2019-12-02 00:25:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-02 00:25:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-02 00:25:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2019-12-02 00:25:11,947 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2019-12-02 00:25:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 00:25:11,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 00:25:12,136 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 00:25:12,136 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-02 00:25:12,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:25:12 BoogieIcfgContainer [2019-12-02 00:25:12,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 00:25:12,137 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 00:25:12,137 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 00:25:12,144 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 00:25:12,144 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:25:12" (1/1) ... [2019-12-02 00:25:12,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 00:25:12,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:25:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2019-12-02 00:25:12,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-02 00:25:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-02 00:25:12,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:25:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:25:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:25:12,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:25:12,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 16 transitions. [2019-12-02 00:25:12,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-12-02 00:25:12,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-02 00:25:12,412 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:25:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:25:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:25:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:25:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 19 transitions. [2019-12-02 00:25:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-12-02 00:25:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 00:25:12,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:25:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 00:25:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 00:25:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 00:25:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 00:25:12,723 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-12-02 00:25:12,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 12:25:12 ImpRootNode [2019-12-02 00:25:12,746 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 00:25:12,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 00:25:12,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 00:25:12,747 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 00:25:12,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:25:12" (3/4) ... [2019-12-02 00:25:12,749 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-02 00:25:12,780 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ba459e9-fb75-4b83-b8b9-9af9b6f40b87/bin/ukojak/witness.graphml [2019-12-02 00:25:12,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 00:25:12,782 INFO L168 Benchmark]: Toolchain (without parser) took 1307.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 935.4 MB in the beginning and 934.4 MB in the end (delta: 986.9 kB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. [2019-12-02 00:25:12,782 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:25:12,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -126.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-12-02 00:25:12,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-02 00:25:12,783 INFO L168 Benchmark]: Boogie Preprocessor took 14.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:25:12,784 INFO L168 Benchmark]: RCFGBuilder took 235.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-12-02 00:25:12,784 INFO L168 Benchmark]: CodeCheck took 609.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 939.8 MB in the end (delta: 88.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 11.5 GB. [2019-12-02 00:25:12,785 INFO L168 Benchmark]: Witness Printer took 33.95 ms. Allocated memory is still 1.1 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-02 00:25:12,787 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 6 SDslu, 4 SDs, 0 SdLazy, 68 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; [L1619] void *retVal = malloc(size); [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 [L1622] return retVal; [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1613] CALL l_free(a) VAL [\old(globalState)=1, globalState=1] [L1629] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=1, globalState=1] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=1, globalState=1] [L1630] globalState = 0 [L1613] RET l_free(a) VAL [globalState=0] [L1614] CALL l_free(a) VAL [\old(globalState)=0, globalState=0] [L1629] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=0, globalState=0] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=0, globalState=0] [L1601] __VERIFIER_error() VAL [\old(globalState)=0, globalState=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -126.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 235.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * CodeCheck took 609.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 939.8 MB in the end (delta: 88.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 11.5 GB. * Witness Printer took 33.95 ms. Allocated memory is still 1.1 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...