./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/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 534681b11e8e68e6058985d885b01f2cbfa43e5b .................................................................................................................................................................................................................................................................................................................. 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-cad4683 [2019-10-22 10:15:01,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:15:01,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:15:01,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:15:01,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:15:01,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:15:01,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:15:01,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:15:01,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:15:01,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:15:01,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:15:01,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:15:01,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:15:01,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:15:01,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:15:01,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:15:01,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:15:01,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:15:01,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:15:01,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:15:01,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:15:01,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:15:01,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:15:01,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:15:01,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:15:01,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:15:01,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:15:01,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:15:01,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:15:01,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:15:01,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:15:01,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:15:01,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:15:01,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:15:01,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:15:01,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:15:01,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:15:01,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:15:01,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:15:01,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:15:01,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:15:01,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:15:01,757 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:15:01,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:15:01,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:15:01,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:15:01,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:15:01,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:15:01,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:15:01,763 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:15:01,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:15:01,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:15:01,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:15:01,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:15:01,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:15:01,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:15:01,764 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:15:01,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:15:01,764 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:15:01,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:15:01,764 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:15:01,765 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:15:01,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:15:01,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:15:01,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:01,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:15:01,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:15:01,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:15:01,766 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:15:01,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:15:01,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:15:01,766 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/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/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 -> 534681b11e8e68e6058985d885b01f2cbfa43e5b [2019-10-22 10:15:01,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:15:01,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:15:01,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:15:01,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:15:01,805 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:15:01,806 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2019-10-22 10:15:01,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/data/888521232/203b239d5e0a40f7bee544fdf120e967/FLAG33cec4b9a [2019-10-22 10:15:02,306 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:15:02,307 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2019-10-22 10:15:02,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/data/888521232/203b239d5e0a40f7bee544fdf120e967/FLAG33cec4b9a [2019-10-22 10:15:02,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/data/888521232/203b239d5e0a40f7bee544fdf120e967 [2019-10-22 10:15:02,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:15:02,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:15:02,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:02,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:15:02,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:15:02,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:02" (1/1) ... [2019-10-22 10:15:02,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679862fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:02, skipping insertion in model container [2019-10-22 10:15:02,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:02" (1/1) ... [2019-10-22 10:15:02,662 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:15:02,697 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:15:03,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:03,051 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:15:03,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:03,152 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:15:03,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03 WrapperNode [2019-10-22 10:15:03,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:03,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:03,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:15:03,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:15:03,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:03,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:15:03,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:15:03,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:03,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... [2019-10-22 10:15:03,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:03,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:03,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:03,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:03,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/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 [2019-10-22 10:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 10:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2019-10-22 10:15:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2019-10-22 10:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-10-22 10:15:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-10-22 10:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 10:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 10:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 10:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 10:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:04,112 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:15:04,112 INFO L284 CfgBuilder]: Removed 45 assume(true) statements. [2019-10-22 10:15:04,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:04 BoogieIcfgContainer [2019-10-22 10:15:04,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:15:04,114 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:15:04,114 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:15:04,124 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:15:04,124 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:04" (1/1) ... [2019-10-22 10:15:04,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:15:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 79 states and 145 transitions. [2019-10-22 10:15:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 145 transitions. [2019-10-22 10:15:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:15:04,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 78 states and 128 transitions. [2019-10-22 10:15:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 128 transitions. [2019-10-22 10:15:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:15:04,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 81 states and 131 transitions. [2019-10-22 10:15:04,400 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 131 transitions. [2019-10-22 10:15:04,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:15:04,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:04,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:04,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 80 states and 129 transitions. [2019-10-22 10:15:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 129 transitions. [2019-10-22 10:15:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:15:04,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:15:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 80 states and 126 transitions. [2019-10-22 10:15:04,643 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2019-10-22 10:15:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:15:04,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:04,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 83 states and 129 transitions. [2019-10-22 10:15:04,733 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2019-10-22 10:15:04,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:15:04,733 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:04,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 84 states and 130 transitions. [2019-10-22 10:15:04,791 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 130 transitions. [2019-10-22 10:15:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:15:04,792 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:15:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 87 states and 131 transitions. [2019-10-22 10:15:05,174 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 131 transitions. [2019-10-22 10:15:05,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:15:05,175 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:15:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 90 states and 132 transitions. [2019-10-22 10:15:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2019-10-22 10:15:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:15:05,340 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:06,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 99 states and 142 transitions. [2019-10-22 10:15:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 142 transitions. [2019-10-22 10:15:06,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:15:06,469 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:06,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 106 states and 148 transitions. [2019-10-22 10:15:06,975 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 148 transitions. [2019-10-22 10:15:06,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 10:15:06,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:08,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 113 states and 155 transitions. [2019-10-22 10:15:08,086 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2019-10-22 10:15:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 10:15:08,087 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:08,183 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2019-10-22 10:15:08,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:15:08 ImpRootNode [2019-10-22 10:15:08,213 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:15:08,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:15:08,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:15:08,213 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:15:08,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:04" (3/4) ... [2019-10-22 10:15:08,216 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:15:08,264 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c36f1940-fd34-4a82-8010-cd5ff88fb822/bin/ukojak/witness.graphml [2019-10-22 10:15:08,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:15:08,266 INFO L168 Benchmark]: Toolchain (without parser) took 5617.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 939.4 MB in the beginning and 958.8 MB in the end (delta: -19.4 MB). Peak memory consumption was 175.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:08,267 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-10-22 10:15:08,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:08,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:08,277 INFO L168 Benchmark]: Boogie Preprocessor took 38.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:08,277 INFO L168 Benchmark]: RCFGBuilder took 872.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:08,278 INFO L168 Benchmark]: CodeCheck took 4099.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.0 GB in the beginning and 967.1 MB in the end (delta: 70.3 MB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:08,278 INFO L168 Benchmark]: Witness Printer took 51.46 ms. Allocated memory is still 1.2 GB. Free memory was 960.9 MB in the beginning and 958.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:08,284 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 3 procedures, 79 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30526 SDtfs, 7684 SDslu, 9540 SDs, 0 SdLazy, 14762 SolverSat, 7274 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1430 GetRequests, 1334 SyntacticMatches, 10 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2289 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 13431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 16/18 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: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] struct list *data = ((void *)0); [L628] COND TRUE __VERIFIER_nondet_int() [L629] struct node *node = malloc(sizeof *node); [L630] COND FALSE !(!node) [L632] node->next = node [L633] node->value = __VERIFIER_nondet_int() [L634] struct list *item = malloc(sizeof *item); [L635] COND FALSE !(!item) [L637] item->slist = node [L638] item->next = data [L639] data = item [L628] COND FALSE !(__VERIFIER_nondet_int()) [L641] COND FALSE !(!data) [L604] COND FALSE !(!(shape)) [L605] shape->next [L605] COND FALSE !(shape->next) [L611] COND FALSE !(!(shape)) [L612] EXPR shape->next [L612] COND FALSE !(!(shape->next == ((void *)0))) [L613] EXPR shape->slist [L613] COND FALSE !(!(shape->slist)) [L614] EXPR shape->slist [L614] EXPR shape->slist->next [L614] COND TRUE !(shape->slist->next == ((void *)0)) [L614] CALL fail() [L554] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 504.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 872.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * CodeCheck took 4099.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.0 GB in the beginning and 967.1 MB in the end (delta: 70.3 MB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. * Witness Printer took 51.46 ms. Allocated memory is still 1.2 GB. Free memory was 960.9 MB in the beginning and 958.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...