./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/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 95135695b4ab9cb9c416390540cae35b9fbb32e4 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-28 04:42:00,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:00,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:00,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:00,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:00,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:00,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:00,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:00,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:00,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:00,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:00,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:00,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:00,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:00,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:00,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:00,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:00,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:00,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:00,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:00,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:00,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:00,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:00,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:00,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:00,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:00,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:00,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:00,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:00,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:00,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:00,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:00,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:00,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:00,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:00,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:00,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:00,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:00,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:00,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:00,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:00,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-11-28 04:42:00,734 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:00,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:00,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:00,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:00,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:00,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:42:00,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:42:00,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:00,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:42:00,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:00,742 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:42:00,742 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:42:00,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:00,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:42:00,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:00,743 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:00,743 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:00,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:00,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:00,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:00,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:00,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:00,745 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:00,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:00,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95135695b4ab9cb9c416390540cae35b9fbb32e4 [2020-11-28 04:42:01,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:01,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:01,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:01,072 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:01,073 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:01,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-token-1.i [2020-11-28 04:42:01,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/data/06c71c7f3/760eef9b61c844ca9762e1162986933d/FLAG2a6e66a8f [2020-11-28 04:42:01,760 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:01,760 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/sv-benchmarks/c/forester-heap/sll-token-1.i [2020-11-28 04:42:01,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/data/06c71c7f3/760eef9b61c844ca9762e1162986933d/FLAG2a6e66a8f [2020-11-28 04:42:02,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/data/06c71c7f3/760eef9b61c844ca9762e1162986933d [2020-11-28 04:42:02,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:02,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:02,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:02,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:02,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:02,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fb2760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02, skipping insertion in model container [2020-11-28 04:42:02,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:02,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:02,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:02,458 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:02,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:02,569 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:02,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02 WrapperNode [2020-11-28 04:42:02,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:02,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:02,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:02,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:02,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:02,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:02,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:02,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:02,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:02,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:02,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:02,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:02,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/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 [2020-11-28 04:42:02,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:42:02,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:42:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:42:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 04:42:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:42:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 04:42:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:42:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:42:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:02,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:03,617 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:03,617 INFO L298 CfgBuilder]: Removed 31 assume(true) statements. [2020-11-28 04:42:03,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:03 BoogieIcfgContainer [2020-11-28 04:42:03,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:03,622 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:03,622 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:03,635 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:03,635 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:03" (1/1) ... [2020-11-28 04:42:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 120 states and 149 transitions. [2020-11-28 04:42:03,718 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2020-11-28 04:42:03,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-28 04:42:03,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 119 states and 148 transitions. [2020-11-28 04:42:03,930 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 148 transitions. [2020-11-28 04:42:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-28 04:42:03,930 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:04,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 118 states and 147 transitions. [2020-11-28 04:42:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2020-11-28 04:42:04,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:42:04,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 117 states and 146 transitions. [2020-11-28 04:42:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2020-11-28 04:42:04,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:42:04,214 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 116 states and 145 transitions. [2020-11-28 04:42:04,310 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 145 transitions. [2020-11-28 04:42:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:42:04,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:04,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 116 states and 143 transitions. [2020-11-28 04:42:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2020-11-28 04:42:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:04,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 119 states and 148 transitions. [2020-11-28 04:42:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 148 transitions. [2020-11-28 04:42:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:04,469 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 122 states and 153 transitions. [2020-11-28 04:42:04,673 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2020-11-28 04:42:04,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:04,674 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:04,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 123 states and 155 transitions. [2020-11-28 04:42:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 155 transitions. [2020-11-28 04:42:04,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:04,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 124 states and 158 transitions. [2020-11-28 04:42:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 158 transitions. [2020-11-28 04:42:05,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:05,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:05,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 125 states and 161 transitions. [2020-11-28 04:42:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 161 transitions. [2020-11-28 04:42:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:05,121 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 125 states and 160 transitions. [2020-11-28 04:42:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 160 transitions. [2020-11-28 04:42:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:05,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:05,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 124 states and 159 transitions. [2020-11-28 04:42:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 159 transitions. [2020-11-28 04:42:05,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:05,290 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:05,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 125 states and 161 transitions. [2020-11-28 04:42:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 161 transitions. [2020-11-28 04:42:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:05,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 124 states and 160 transitions. [2020-11-28 04:42:05,746 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 160 transitions. [2020-11-28 04:42:05,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:05,747 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:05,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 125 states and 162 transitions. [2020-11-28 04:42:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-11-28 04:42:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:05,798 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:06,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 127 states and 166 transitions. [2020-11-28 04:42:06,460 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 166 transitions. [2020-11-28 04:42:06,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:06,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:07,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:07,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 129 states and 170 transitions. [2020-11-28 04:42:07,145 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 170 transitions. [2020-11-28 04:42:07,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:42:07,145 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:07,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 131 states and 174 transitions. [2020-11-28 04:42:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 174 transitions. [2020-11-28 04:42:07,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:42:07,684 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:07,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 133 states and 178 transitions. [2020-11-28 04:42:08,646 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 178 transitions. [2020-11-28 04:42:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:42:08,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:08,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 133 states and 175 transitions. [2020-11-28 04:42:08,679 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 175 transitions. [2020-11-28 04:42:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:42:08,680 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:09,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 135 states and 177 transitions. [2020-11-28 04:42:09,881 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 177 transitions. [2020-11-28 04:42:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:42:09,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:11,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 144 states and 194 transitions. [2020-11-28 04:42:11,480 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 194 transitions. [2020-11-28 04:42:11,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:42:11,481 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:11,503 ERROR L253 erpolLogProxyWrapper]: Interpolant 5 not inductive [2020-11-28 04:42:11,507 ERROR L603 CodeCheckObserver]: First Tracecheck threw exception generated interpolants did not pass sanity check [2020-11-28 04:42:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:11,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 04:42:11,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:11,873 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2020-11-28 04:42:11,874 INFO L350 Elim1Store]: treesize reduction 13, result has 76.4 percent of original size [2020-11-28 04:42:11,877 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 47 [2020-11-28 04:42:11,877 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:42:11,922 INFO L625 ElimStorePlain]: treesize reduction 20, result has 60.0 percent of original size [2020-11-28 04:42:11,931 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 04:42:11,931 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:9 [2020-11-28 04:42:12,107 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 04:42:12,107 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-11-28 04:42:12,108 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:42:12,131 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-11-28 04:42:12,133 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 04:42:12,133 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-11-28 04:42:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:14,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 153 states and 211 transitions. [2020-11-28 04:42:14,199 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 211 transitions. [2020-11-28 04:42:14,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:42:14,199 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:14,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:16,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 159 states and 221 transitions. [2020-11-28 04:42:16,711 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 221 transitions. [2020-11-28 04:42:16,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:42:16,711 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 163 states and 227 transitions. [2020-11-28 04:42:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 227 transitions. [2020-11-28 04:42:17,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:42:17,704 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:18,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 122 states and 153 transitions. [2020-11-28 04:42:18,772 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2020-11-28 04:42:18,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:18,773 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:18,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 121 states and 150 transitions. [2020-11-28 04:42:18,805 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2020-11-28 04:42:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:18,805 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:18,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:18,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 123 states and 154 transitions. [2020-11-28 04:42:18,879 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 154 transitions. [2020-11-28 04:42:18,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:18,879 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 122 states and 151 transitions. [2020-11-28 04:42:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 151 transitions. [2020-11-28 04:42:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:18,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:19,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:19,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 123 states and 152 transitions. [2020-11-28 04:42:19,042 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2020-11-28 04:42:19,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:42:19,043 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:20,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 124 states and 153 transitions. [2020-11-28 04:42:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 153 transitions. [2020-11-28 04:42:20,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:42:20,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:20,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:20,693 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:20,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:20,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:20,882 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 32 iterations. [2020-11-28 04:42:20,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:20 ImpRootNode [2020-11-28 04:42:20,931 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:20,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:20,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:20,932 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:20,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:03" (3/4) ... [2020-11-28 04:42:20,935 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:42:21,035 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a53935a1-d689-46e4-b34a-a621aac5ebfd/bin/ukojak/witness.graphml [2020-11-28 04:42:21,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:21,036 INFO L168 Benchmark]: Toolchain (without parser) took 18974.32 ms. Allocated memory was 92.3 MB in the beginning and 237.0 MB in the end (delta: 144.7 MB). Free memory was 60.9 MB in the beginning and 142.7 MB in the end (delta: -81.9 MB). Peak memory consumption was 62.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:21,037 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:21,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.26 ms. Allocated memory is still 92.3 MB. Free memory was 60.7 MB in the beginning and 57.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:21,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.87 ms. Allocated memory is still 92.3 MB. Free memory was 57.9 MB in the beginning and 55.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:21,048 INFO L168 Benchmark]: Boogie Preprocessor took 47.46 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 54.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:21,049 INFO L168 Benchmark]: RCFGBuilder took 924.69 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 53.7 MB in the beginning and 68.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:21,050 INFO L168 Benchmark]: CodeCheck took 17309.55 ms. Allocated memory was 113.2 MB in the beginning and 237.0 MB in the end (delta: 123.7 MB). Free memory was 68.3 MB in the beginning and 144.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:21,051 INFO L168 Benchmark]: Witness Printer took 103.37 ms. Allocated memory is still 237.0 MB. Free memory was 144.8 MB in the beginning and 142.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:21,055 INFO L339 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, 120 locations, 54 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.2s, OverallIterations: 32, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1073777320 SDtfs, 2016308176 SDslu, 738222368 SDs, 0 SdLazy, -1923580370 SolverSat, -1404677326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2114 GetRequests, 1902 SyntacticMatches, 26 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11901 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 10026 SizeOfPredicates, 7 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 31 InterpolantComputations, 30 PerfectInterpolantSequences, 4/5 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: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) [L1005] head->data = 0 [L1007] SLL* x = head; [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 [L1019] x->next = malloc(sizeof(SLL)) [L1020] EXPR x->next [L1020] x->next->data = 2 [L1022] x = head [L1024] COND FALSE !(!(((void*)0) != x)) [L1026] EXPR x->data [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data [L1031] COND TRUE !(2 == x->data) [L992] COND FALSE !(0) [L992] __assert_fail ("0", "sll-token-1.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 508.26 ms. Allocated memory is still 92.3 MB. Free memory was 60.7 MB in the beginning and 57.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.87 ms. Allocated memory is still 92.3 MB. Free memory was 57.9 MB in the beginning and 55.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.46 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 54.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 924.69 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 53.7 MB in the beginning and 68.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * CodeCheck took 17309.55 ms. Allocated memory was 113.2 MB in the beginning and 237.0 MB in the end (delta: 123.7 MB). Free memory was 68.3 MB in the beginning and 144.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. * Witness Printer took 103.37 ms. Allocated memory is still 237.0 MB. Free memory was 144.8 MB in the beginning and 142.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...