./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6439b1baef116d71fdff38c675a38b8a29c42257 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-01 23:16:24,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 23:16:24,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 23:16:24,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 23:16:24,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 23:16:24,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 23:16:24,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 23:16:24,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 23:16:24,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 23:16:24,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 23:16:24,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 23:16:24,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 23:16:24,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 23:16:24,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 23:16:24,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 23:16:24,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 23:16:24,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 23:16:24,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 23:16:24,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 23:16:24,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 23:16:24,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 23:16:24,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 23:16:24,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 23:16:24,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 23:16:24,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 23:16:24,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 23:16:24,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 23:16:24,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 23:16:24,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 23:16:24,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 23:16:24,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 23:16:24,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 23:16:24,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 23:16:24,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 23:16:24,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 23:16:24,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 23:16:24,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 23:16:24,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 23:16:24,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 23:16:24,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 23:16:24,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 23:16:24,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2019-12-01 23:16:24,731 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 23:16:24,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 23:16:24,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 23:16:24,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 23:16:24,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 23:16:24,733 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 23:16:24,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 23:16:24,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 23:16:24,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 23:16:24,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 23:16:24,733 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 23:16:24,733 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 23:16:24,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 23:16:24,734 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 23:16:24,734 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 23:16:24,734 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 23:16:24,734 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 23:16:24,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 23:16:24,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 23:16:24,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 23:16:24,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 23:16:24,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 23:16:24,735 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 23:16:24,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 23:16:24,735 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_e9826d61-c366-4a6d-b6fd-0d1690d54faa/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 valid-memcleanup) ) 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 -> 6439b1baef116d71fdff38c675a38b8a29c42257 [2019-12-01 23:16:24,834 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 23:16:24,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 23:16:24,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 23:16:24,845 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 23:16:24,846 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 23:16:24,846 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/../../sv-benchmarks/c/list-properties/list-2.i [2019-12-01 23:16:24,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/data/0e7a8d5d4/956d4aef99fa44189fb2e1e6f71ba637/FLAGcfe429960 [2019-12-01 23:16:25,381 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 23:16:25,382 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/sv-benchmarks/c/list-properties/list-2.i [2019-12-01 23:16:25,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/data/0e7a8d5d4/956d4aef99fa44189fb2e1e6f71ba637/FLAGcfe429960 [2019-12-01 23:16:25,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/data/0e7a8d5d4/956d4aef99fa44189fb2e1e6f71ba637 [2019-12-01 23:16:25,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 23:16:25,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 23:16:25,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 23:16:25,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 23:16:25,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 23:16:25,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62699726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25, skipping insertion in model container [2019-12-01 23:16:25,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 23:16:25,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 23:16:25,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 23:16:25,693 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 23:16:25,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 23:16:25,753 INFO L208 MainTranslator]: Completed translation [2019-12-01 23:16:25,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25 WrapperNode [2019-12-01 23:16:25,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 23:16:25,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 23:16:25,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 23:16:25,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 23:16:25,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 23:16:25,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 23:16:25,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 23:16:25,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 23:16:25,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... [2019-12-01 23:16:25,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 23:16:25,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 23:16:25,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 23:16:25,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 23:16:25,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/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 [2019-12-01 23:16:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 23:16:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 23:16:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 23:16:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 23:16:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 23:16:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 23:16:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 23:16:26,121 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 23:16:26,121 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-01 23:16:26,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:26 BoogieIcfgContainer [2019-12-01 23:16:26,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 23:16:26,123 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 23:16:26,123 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 23:16:26,130 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 23:16:26,130 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:26" (1/1) ... [2019-12-01 23:16:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 23:16:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 56 states and 67 transitions. [2019-12-01 23:16:26,161 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2019-12-01 23:16:26,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 23:16:26,163 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2019-12-01 23:16:26,254 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2019-12-01 23:16:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 23:16:26,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 59 states and 70 transitions. [2019-12-01 23:16:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2019-12-01 23:16:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 23:16:26,317 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 62 states and 75 transitions. [2019-12-01 23:16:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2019-12-01 23:16:26,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 23:16:26,535 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 65 states and 80 transitions. [2019-12-01 23:16:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2019-12-01 23:16:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 23:16:26,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 68 states and 85 transitions. [2019-12-01 23:16:26,594 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2019-12-01 23:16:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 23:16:26,596 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 69 states and 86 transitions. [2019-12-01 23:16:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2019-12-01 23:16:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 23:16:26,618 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 70 states and 87 transitions. [2019-12-01 23:16:26,653 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2019-12-01 23:16:26,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 23:16:26,654 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 69 states and 86 transitions. [2019-12-01 23:16:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2019-12-01 23:16:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 23:16:26,696 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 71 states and 89 transitions. [2019-12-01 23:16:26,801 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2019-12-01 23:16:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 23:16:26,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 77 states and 101 transitions. [2019-12-01 23:16:26,948 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2019-12-01 23:16:26,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 23:16:26,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 83 states and 114 transitions. [2019-12-01 23:16:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2019-12-01 23:16:27,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 23:16:27,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 82 states and 113 transitions. [2019-12-01 23:16:27,138 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 113 transitions. [2019-12-01 23:16:27,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 23:16:27,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 81 states and 112 transitions. [2019-12-01 23:16:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2019-12-01 23:16:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 23:16:27,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 83 states and 116 transitions. [2019-12-01 23:16:27,412 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 116 transitions. [2019-12-01 23:16:27,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 23:16:27,412 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 83 states and 115 transitions. [2019-12-01 23:16:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2019-12-01 23:16:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 23:16:27,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 84 states and 116 transitions. [2019-12-01 23:16:27,488 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2019-12-01 23:16:27,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 23:16:27,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 85 states and 117 transitions. [2019-12-01 23:16:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2019-12-01 23:16:27,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 23:16:27,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 84 states and 116 transitions. [2019-12-01 23:16:27,661 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2019-12-01 23:16:27,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 23:16:27,662 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 86 states and 121 transitions. [2019-12-01 23:16:27,775 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2019-12-01 23:16:27,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 23:16:27,775 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 85 states and 120 transitions. [2019-12-01 23:16:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-12-01 23:16:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 23:16:27,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:27,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:27,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 84 states and 119 transitions. [2019-12-01 23:16:27,820 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2019-12-01 23:16:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 23:16:27,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:28,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 86 states and 125 transitions. [2019-12-01 23:16:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions. [2019-12-01 23:16:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 23:16:28,451 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:28,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 87 states and 126 transitions. [2019-12-01 23:16:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 126 transitions. [2019-12-01 23:16:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 23:16:28,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:29,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 75 states and 109 transitions. [2019-12-01 23:16:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 109 transitions. [2019-12-01 23:16:29,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 23:16:29,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 74 states and 108 transitions. [2019-12-01 23:16:29,557 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2019-12-01 23:16:29,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 23:16:29,557 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 73 states and 107 transitions. [2019-12-01 23:16:29,572 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 107 transitions. [2019-12-01 23:16:29,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 23:16:29,573 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:29,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 72 states and 106 transitions. [2019-12-01 23:16:29,589 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2019-12-01 23:16:29,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 23:16:29,589 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:29,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:29,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 75 states and 114 transitions. [2019-12-01 23:16:29,647 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 114 transitions. [2019-12-01 23:16:29,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 23:16:29,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:30,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 77 states and 119 transitions. [2019-12-01 23:16:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 119 transitions. [2019-12-01 23:16:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 23:16:30,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:30,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 78 states and 120 transitions. [2019-12-01 23:16:30,864 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 120 transitions. [2019-12-01 23:16:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 23:16:30,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:30,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:30,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:30,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 61 states and 95 transitions. [2019-12-01 23:16:30,916 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 95 transitions. [2019-12-01 23:16:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 23:16:30,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:31,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:31,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2019-12-01 23:16:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2019-12-01 23:16:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 23:16:31,924 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 71 states and 114 transitions. [2019-12-01 23:16:34,579 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 114 transitions. [2019-12-01 23:16:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 23:16:34,580 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:35,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:35,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 74 states and 119 transitions. [2019-12-01 23:16:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 119 transitions. [2019-12-01 23:16:35,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 23:16:35,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:35,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:35,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 80 states and 128 transitions. [2019-12-01 23:16:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 128 transitions. [2019-12-01 23:16:35,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 23:16:35,934 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:16:35,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:16:35,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:16:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 82 states and 131 transitions. [2019-12-01 23:16:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 131 transitions. [2019-12-01 23:16:35,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 23:16:35,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:16:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:16:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:16:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:16:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:16:35,999 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 37 iterations. [2019-12-01 23:16:36,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 11:16:36 ImpRootNode [2019-12-01 23:16:36,020 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 23:16:36,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 23:16:36,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 23:16:36,021 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 23:16:36,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:26" (3/4) ... [2019-12-01 23:16:36,023 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 23:16:36,055 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e9826d61-c366-4a6d-b6fd-0d1690d54faa/bin/ukojak/witness.graphml [2019-12-01 23:16:36,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 23:16:36,057 INFO L168 Benchmark]: Toolchain (without parser) took 10649.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 946.3 MB in the beginning and 960.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 178.9 MB. Max. memory is 11.5 GB. [2019-12-01 23:16:36,057 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 23:16:36,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-01 23:16:36,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.37 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. [2019-12-01 23:16:36,058 INFO L168 Benchmark]: Boogie Preprocessor took 20.47 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. [2019-12-01 23:16:36,059 INFO L168 Benchmark]: RCFGBuilder took 317.72 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-12-01 23:16:36,059 INFO L168 Benchmark]: CodeCheck took 9897.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 969.8 MB in the end (delta: 82.8 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. [2019-12-01 23:16:36,060 INFO L168 Benchmark]: Witness Printer took 34.59 ms. Allocated memory is still 1.2 GB. Free memory was 969.8 MB in the beginning and 960.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-12-01 23:16:36,062 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 1 procedures, 56 locations, 26 error locations. Result: UNSAFE, OverallTime: 9.8s, OverallIterations: 37, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: -1558163424 SDtfs, -882891864 SDslu, 1924423120 SDs, 0 SdLazy, -903911874 SolverSat, 837694010 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3050 GetRequests, 2800 SyntacticMatches, 96 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10145 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 372 NumberOfCodeBlocks, 372 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 321 ConstructedInterpolants, 0 QuantifiedInterpolants, 21642 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 32 PerfectInterpolantSequences, 12/20 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: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); [L522] COND FALSE !(a == 0) [L523] List t; [L524] List p = a; [L525] COND FALSE !(__VERIFIER_nondet_int()) [L532] COND FALSE !(__VERIFIER_nondet_int()) [L539] p->h = 3 [L540] p = a [L541] EXPR p->h [L541] COND FALSE !(p->h == 2) [L543] EXPR p->h [L543] COND FALSE !(p->h == 1) [L545] EXPR p->h [L545] COND FALSE !(p->h != 3) [L547] return 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.37 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 20.47 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 317.72 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * CodeCheck took 9897.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 969.8 MB in the end (delta: 82.8 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. * Witness Printer took 34.59 ms. Allocated memory is still 1.2 GB. Free memory was 969.8 MB in the beginning and 960.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...