./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39996758d4a4793ed5619e696b4574ccdffaa666 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:26:11,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:26:11,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:26:11,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:26:11,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:26:11,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:26:11,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:26:11,536 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:26:11,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:26:11,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:26:11,538 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:26:11,538 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:26:11,538 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:26:11,539 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:26:11,539 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:26:11,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:26:11,544 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:26:11,545 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:26:11,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:26:11,554 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:26:11,555 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:26:11,556 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:26:11,557 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:26:11,558 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:26:11,558 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:26:11,558 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:26:11,559 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:26:11,560 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:26:11,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:26:11,565 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:26:11,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:26:11,566 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:26:11,566 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:26:11,566 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:26:11,567 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:26:11,567 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:26:11,568 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:26:11,583 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:26:11,583 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:26:11,585 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:26:11,586 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:26:11,586 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:26:11,586 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:26:11,586 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:26:11,587 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:26:11,587 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:26:11,587 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:26:11,587 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:26:11,587 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:26:11,587 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:26:11,587 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:26:11,588 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:26:11,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:26:11,588 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:26:11,588 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:26:11,588 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:26:11,588 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:26:11,588 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:26:11,588 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:26:11,589 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:26:11,589 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:26:11,589 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:26:11,589 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:26:11,589 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:26:11,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:26:11,589 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39996758d4a4793ed5619e696b4574ccdffaa666 [2018-10-26 23:26:11,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:26:11,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:26:11,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:26:11,634 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:26:11,634 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:26:11,635 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i [2018-10-26 23:26:11,681 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/data/db59e2833/72fa028e37104ae5b7207659fe5b82ca/FLAG0dc5ff851 [2018-10-26 23:26:12,118 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:26:12,118 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i [2018-10-26 23:26:12,133 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/data/db59e2833/72fa028e37104ae5b7207659fe5b82ca/FLAG0dc5ff851 [2018-10-26 23:26:12,146 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/data/db59e2833/72fa028e37104ae5b7207659fe5b82ca [2018-10-26 23:26:12,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:26:12,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:26:12,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:26:12,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:26:12,154 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:26:12,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3a0eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12, skipping insertion in model container [2018-10-26 23:26:12,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:26:12,211 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:26:12,451 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:26:12,459 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:26:12,499 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:26:12,536 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:26:12,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12 WrapperNode [2018-10-26 23:26:12,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:26:12,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:26:12,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:26:12,538 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:26:12,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:26:12,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:26:12,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:26:12,651 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:26:12,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... [2018-10-26 23:26:12,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:26:12,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:26:12,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:26:12,699 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:26:12,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:26:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/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 [2018-10-26 23:26:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:26:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 23:26:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 23:26:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 23:26:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 23:26:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:26:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:26:14,404 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:26:14,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:26:14 BoogieIcfgContainer [2018-10-26 23:26:14,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:26:14,405 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:26:14,406 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:26:14,416 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:26:14,417 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:26:14" (1/1) ... [2018-10-26 23:26:14,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:26:14,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 84 states and 134 transitions. [2018-10-26 23:26:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 134 transitions. [2018-10-26 23:26:14,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-26 23:26:14,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:14,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 84 states and 129 transitions. [2018-10-26 23:26:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2018-10-26 23:26:14,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 23:26:14,591 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 88 states and 135 transitions. [2018-10-26 23:26:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 135 transitions. [2018-10-26 23:26:14,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 23:26:14,843 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:14,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 90 states and 134 transitions. [2018-10-26 23:26:14,934 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 134 transitions. [2018-10-26 23:26:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 23:26:14,934 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 95 states and 140 transitions. [2018-10-26 23:26:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 140 transitions. [2018-10-26 23:26:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-26 23:26:15,745 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:15,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 101 states and 147 transitions. [2018-10-26 23:26:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2018-10-26 23:26:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 23:26:16,081 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:16,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 102 states and 145 transitions. [2018-10-26 23:26:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2018-10-26 23:26:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 23:26:16,131 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:16,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 103 states and 143 transitions. [2018-10-26 23:26:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 143 transitions. [2018-10-26 23:26:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 23:26:16,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:16,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:26:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 88 states and 124 transitions. [2018-10-26 23:26:16,320 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2018-10-26 23:26:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 23:26:16,321 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:16,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 93 states and 127 transitions. [2018-10-26 23:26:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2018-10-26 23:26:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:26:16,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:26:16,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:16,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 91 states and 125 transitions. [2018-10-26 23:26:16,547 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2018-10-26 23:26:16,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:26:16,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 103 states and 140 transitions. [2018-10-26 23:26:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 140 transitions. [2018-10-26 23:26:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:26:17,162 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:17,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 105 states and 142 transitions. [2018-10-26 23:26:17,331 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 142 transitions. [2018-10-26 23:26:17,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:26:17,331 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:26:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 116 states and 160 transitions. [2018-10-26 23:26:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions. [2018-10-26 23:26:18,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:26:18,199 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:18,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 135 states and 185 transitions. [2018-10-26 23:26:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 185 transitions. [2018-10-26 23:26:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:26:19,253 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 137 states and 187 transitions. [2018-10-26 23:26:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 187 transitions. [2018-10-26 23:26:19,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 23:26:19,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:20,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 139 states and 190 transitions. [2018-10-26 23:26:21,032 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2018-10-26 23:26:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:26:21,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:22,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 142 states and 195 transitions. [2018-10-26 23:26:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2018-10-26 23:26:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 23:26:22,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 23:26:22,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 145 states and 199 transitions. [2018-10-26 23:26:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 199 transitions. [2018-10-26 23:26:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 23:26:22,417 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 23:26:22,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:22,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 149 states and 205 transitions. [2018-10-26 23:26:22,619 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 205 transitions. [2018-10-26 23:26:22,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-26 23:26:22,620 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:25,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:26,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 175 states and 245 transitions. [2018-10-26 23:26:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 245 transitions. [2018-10-26 23:26:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-26 23:26:26,001 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:26,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:26,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 177 states and 247 transitions. [2018-10-26 23:26:26,536 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 247 transitions. [2018-10-26 23:26:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 23:26:26,537 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:27,264 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 203 states and 295 transitions. [2018-10-26 23:26:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 295 transitions. [2018-10-26 23:26:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 23:26:29,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 205 states and 298 transitions. [2018-10-26 23:26:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2018-10-26 23:26:30,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 23:26:30,356 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 217 states and 310 transitions. [2018-10-26 23:26:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 310 transitions. [2018-10-26 23:26:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 23:26:31,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:32,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 219 states and 313 transitions. [2018-10-26 23:26:32,460 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 313 transitions. [2018-10-26 23:26:32,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 23:26:32,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 248 states and 357 transitions. [2018-10-26 23:26:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 357 transitions. [2018-10-26 23:26:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 23:26:35,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:36,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 250 states and 360 transitions. [2018-10-26 23:26:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 360 transitions. [2018-10-26 23:26:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-26 23:26:36,345 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:40,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 271 states and 395 transitions. [2018-10-26 23:26:40,668 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 395 transitions. [2018-10-26 23:26:40,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-26 23:26:40,669 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 23:26:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 278 states and 404 transitions. [2018-10-26 23:26:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 404 transitions. [2018-10-26 23:26:42,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-26 23:26:42,154 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 290 states and 419 transitions. [2018-10-26 23:26:43,256 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 419 transitions. [2018-10-26 23:26:43,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-26 23:26:43,257 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 292 states and 422 transitions. [2018-10-26 23:26:43,792 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 422 transitions. [2018-10-26 23:26:43,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 23:26:43,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:46,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 307 states and 446 transitions. [2018-10-26 23:26:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 446 transitions. [2018-10-26 23:26:46,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 23:26:46,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:47,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 319 states and 465 transitions. [2018-10-26 23:26:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 465 transitions. [2018-10-26 23:26:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 23:26:47,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:50,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:50,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 331 states and 484 transitions. [2018-10-26 23:26:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 484 transitions. [2018-10-26 23:26:50,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 23:26:50,156 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:50,782 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-10-26 23:26:51,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 333 states and 487 transitions. [2018-10-26 23:26:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 487 transitions. [2018-10-26 23:26:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 23:26:51,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:26:51,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:26:51,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 335 states and 490 transitions. [2018-10-26 23:26:51,861 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 490 transitions. [2018-10-26 23:26:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 23:26:51,861 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:26:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:26:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 362 states and 534 transitions. [2018-10-26 23:27:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 534 transitions. [2018-10-26 23:27:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 23:27:01,784 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 364 states and 536 transitions. [2018-10-26 23:27:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 536 transitions. [2018-10-26 23:27:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-26 23:27:02,898 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:27:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 366 states and 540 transitions. [2018-10-26 23:27:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 540 transitions. [2018-10-26 23:27:03,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-26 23:27:03,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 396 states and 598 transitions. [2018-10-26 23:27:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 598 transitions. [2018-10-26 23:27:09,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-26 23:27:09,617 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 400 states and 605 transitions. [2018-10-26 23:27:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 605 transitions. [2018-10-26 23:27:11,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 23:27:11,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:20,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 433 states and 667 transitions. [2018-10-26 23:27:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 667 transitions. [2018-10-26 23:27:20,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 23:27:20,171 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:21,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:21,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 437 states and 675 transitions. [2018-10-26 23:27:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 675 transitions. [2018-10-26 23:27:21,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-26 23:27:21,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:23,650 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 470 states and 742 transitions. [2018-10-26 23:27:38,840 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 742 transitions. [2018-10-26 23:27:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-26 23:27:38,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 477 states and 754 transitions. [2018-10-26 23:27:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 754 transitions. [2018-10-26 23:27:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-26 23:27:42,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:48,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 482 states and 765 transitions. [2018-10-26 23:27:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 765 transitions. [2018-10-26 23:27:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-26 23:27:48,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 490 states and 789 transitions. [2018-10-26 23:27:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 789 transitions. [2018-10-26 23:27:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-26 23:27:51,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-26 23:27:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:52,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 233 states and 343 transitions. [2018-10-26 23:27:52,105 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 343 transitions. [2018-10-26 23:27:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-26 23:27:52,106 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:27:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:27:53,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:27:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 235 states and 348 transitions. [2018-10-26 23:27:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 348 transitions. [2018-10-26 23:27:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-26 23:27:53,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:27:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:27:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:27:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:27:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:27:53,785 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 50 iterations. [2018-10-26 23:27:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:27:53 ImpRootNode [2018-10-26 23:27:53,869 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:27:53,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:27:53,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:27:53,869 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:27:53,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:26:14" (3/4) ... [2018-10-26 23:27:53,872 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:27:53,950 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ffdacf31-2eb6-4876-9359-24cbc6954a80/bin-2019/ukojak/witness.graphml [2018-10-26 23:27:53,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:27:53,951 INFO L168 Benchmark]: Toolchain (without parser) took 101801.46 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.1 GB). Free memory was 957.0 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:27:53,951 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:27:53,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.19 ms. Allocated memory is still 1.0 GB. Free memory was 957.0 MB in the beginning and 932.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:27:53,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 932.8 MB in the beginning and 1.1 GB in the end (delta: -215.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:27:53,952 INFO L168 Benchmark]: Boogie Preprocessor took 48.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:27:53,952 INFO L168 Benchmark]: RCFGBuilder took 1706.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:27:53,953 INFO L168 Benchmark]: CodeCheck took 99463.37 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 932.2 MB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -919.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-10-26 23:27:53,953 INFO L168 Benchmark]: Witness Printer took 80.78 ms. Allocated memory is still 2.1 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 5.1 kB). Peak memory consumption was 5.1 kB. Max. memory is 11.5 GB. [2018-10-26 23:27:53,955 INFO L336 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, 134 locations, 14 error locations. UNSAFE Result, 99.3s OverallTime, 50 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -938995968 SDtfs, 1607749976 SDslu, 2000532792 SDs, 0 SdLazy, -947242628 SolverSat, -1464295496 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12910 GetRequests, 11533 SyntacticMatches, 619 SemanticMatches, 758 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332705 ImplicationChecksByTransitivity, 93.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 1524 NumberOfCodeBlocks, 1524 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1427 ConstructedInterpolants, 0 QuantifiedInterpolants, 934940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 49 InterpolantComputations, 14 PerfectInterpolantSequences, 66/724 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1038]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] FCALL head->data = 0 [L990] SLL* item = head; [L991] int status = 0; [L993] COND TRUE __VERIFIER_nondet_int() [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] FCALL item->next = malloc(sizeof(SLL)) [L996] EXPR, FCALL item->next [L996] FCALL item->next->prev = item [L997] EXPR, FCALL item->next [L997] item = item->next [L998] FCALL item->next = ((void*)0) [L1000] COND TRUE !status [L1002] FCALL item->data = 1 [L1003] status = 1 [L1016] COND FALSE !(!(head != ((void*)0))) [L1016] COND FALSE !(0) [L1017] COND FALSE !(!(item != ((void*)0))) [L1017] COND FALSE !(0) [L993] COND TRUE __VERIFIER_nondet_int() [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] FCALL item->next = malloc(sizeof(SLL)) [L996] EXPR, FCALL item->next [L996] FCALL item->next->prev = item [L997] EXPR, FCALL item->next [L997] item = item->next [L998] FCALL item->next = ((void*)0) [L1000] COND FALSE !(!status) [L1005] COND TRUE status == 1 [L1007] FCALL item->data = 2 [L1008] status = 2 [L1016] COND FALSE !(!(head != ((void*)0))) [L1016] COND FALSE !(0) [L1017] COND FALSE !(!(item != ((void*)0))) [L1017] COND FALSE !(0) [L993] COND TRUE __VERIFIER_nondet_int() [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] FCALL item->next = malloc(sizeof(SLL)) [L996] EXPR, FCALL item->next [L996] FCALL item->next->prev = item [L997] EXPR, FCALL item->next [L997] item = item->next [L998] FCALL item->next = ((void*)0) [L1000] COND FALSE !(!status) [L1005] COND FALSE !(status == 1) [L1010] COND TRUE status >= 2 [L1012] FCALL item->data = 3 [L1013] status = 3 [L1016] COND FALSE !(!(head != ((void*)0))) [L1016] COND FALSE !(0) [L1017] COND FALSE !(!(item != ((void*)0))) [L1017] COND FALSE !(0) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1020] COND FALSE !(!(head != ((void*)0))) [L1020] COND FALSE !(0) [L1021] COND FALSE !(status == 1) [L1026] COND FALSE !(status == 2) [L1032] COND TRUE status == 3 [L1034] COND FALSE !(!(head != ((void*)0))) [L1034] COND FALSE !(0) [L1035] EXPR, FCALL head->next [L1035] COND FALSE !(!(head->next != ((void*)0))) [L1035] COND FALSE !(0) [L1036] EXPR, FCALL head->next [L1036] EXPR, FCALL head->next->next [L1036] COND FALSE !(!(head->next->next != ((void*)0))) [L1036] COND FALSE !(0) [L1037] EXPR, FCALL head->next [L1037] EXPR, FCALL head->next->next [L1037] EXPR, FCALL head->next->next->next [L1037] COND FALSE !(!(head->next->next->next != ((void*)0))) [L1037] COND FALSE !(0) [L1038] EXPR, FCALL head->next [L1038] EXPR, FCALL head->next->next [L1038] EXPR, FCALL head->next->next->next [L1038] EXPR, FCALL head->next->next->next->data [L1038] COND TRUE !(head->next->next->next->data != 3) [L1038] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 387.19 ms. Allocated memory is still 1.0 GB. Free memory was 957.0 MB in the beginning and 932.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 932.8 MB in the beginning and 1.1 GB in the end (delta: -215.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1706.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 11.5 GB. * CodeCheck took 99463.37 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 932.2 MB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -919.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 80.78 ms. Allocated memory is still 2.1 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 5.1 kB). Peak memory consumption was 5.1 kB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...