./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44834c55142a76240cb3980fc2bb6f5aeaa27c83 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:35:23,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:35:23,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:35:23,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:35:23,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:35:23,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:35:23,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:35:23,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:35:23,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:35:23,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:35:23,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:35:23,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:35:23,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:35:23,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:35:23,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:35:23,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:35:23,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:35:23,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:35:23,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:35:23,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:35:23,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:35:23,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:35:23,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:35:23,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:35:23,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:35:23,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:35:23,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:35:23,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:35:23,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:35:23,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:35:23,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:35:23,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:35:23,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:35:23,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:35:23,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:35:23,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:35:23,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:35:23,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:35:23,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:35:23,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:35:23,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:35:23,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 16:35:23,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:35:23,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:35:23,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:35:23,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:35:23,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:35:23,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:35:23,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:35:23,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:35:23,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:35:23,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:35:23,813 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:35:23,813 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:35:23,813 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 16:35:23,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:35:23,814 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:35:23,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:35:23,814 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:35:23,815 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:35:23,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:35:23,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:35:23,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:35:23,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:35:23,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:35:23,816 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:35:23,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:35:23,817 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_db9f6ab5-4234-468e-b80f-43aad01c85fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44834c55142a76240cb3980fc2bb6f5aeaa27c83 [2020-12-01 16:35:24,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:35:24,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:35:24,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:35:24,271 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:35:24,273 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:35:24,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2020-12-01 16:35:24,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/data/e12361cb7/1cf8758603764b839b1acbdbce041941/FLAGf75cb0a8f [2020-12-01 16:35:24,962 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:35:24,963 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2020-12-01 16:35:24,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/data/e12361cb7/1cf8758603764b839b1acbdbce041941/FLAGf75cb0a8f [2020-12-01 16:35:25,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/data/e12361cb7/1cf8758603764b839b1acbdbce041941 [2020-12-01 16:35:25,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:35:25,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:35:25,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:35:25,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:35:25,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:35:25,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f3041d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25, skipping insertion in model container [2020-12-01 16:35:25,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:35:25,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:35:25,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:35:25,668 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:35:25,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:35:25,713 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:35:25,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25 WrapperNode [2020-12-01 16:35:25,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:35:25,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:35:25,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:35:25,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:35:25,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:35:25,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:35:25,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:35:25,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:35:25,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... [2020-12-01 16:35:25,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:35:25,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:35:25,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:35:25,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:35:25,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:35:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/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 [2020-12-01 16:35:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:35:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:35:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:35:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:35:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:35:26,147 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:35:26,147 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 16:35:26,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:35:26 BoogieIcfgContainer [2020-12-01 16:35:26,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:35:26,151 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:35:26,151 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:35:26,164 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:35:26,165 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:35:26" (1/1) ... [2020-12-01 16:35:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:35:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-12-01 16:35:26,221 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-01 16:35:26,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:35:26,224 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-12-01 16:35:26,413 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-01 16:35:26,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:35:26,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:26,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-12-01 16:35:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-01 16:35:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:35:26,601 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-12-01 16:35:27,096 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-12-01 16:35:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:35:27,100 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:27,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2020-12-01 16:35:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-12-01 16:35:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:35:27,198 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2020-12-01 16:35:27,273 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2020-12-01 16:35:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:35:27,274 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2020-12-01 16:35:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2020-12-01 16:35:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:35:27,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:27,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 45 transitions. [2020-12-01 16:35:28,069 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2020-12-01 16:35:28,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:35:28,069 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2020-12-01 16:35:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2020-12-01 16:35:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:35:28,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2020-12-01 16:35:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2020-12-01 16:35:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:28,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 36 states and 60 transitions. [2020-12-01 16:35:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 60 transitions. [2020-12-01 16:35:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:29,474 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 16:35:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 37 states and 59 transitions. [2020-12-01 16:35:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2020-12-01 16:35:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:30,002 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 16:35:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 38 states and 59 transitions. [2020-12-01 16:35:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 59 transitions. [2020-12-01 16:35:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:30,314 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:30,399 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:30,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:30,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 63 transitions. [2020-12-01 16:35:30,814 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2020-12-01 16:35:30,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:30,815 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:30,868 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:31,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:31,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 63 transitions. [2020-12-01 16:35:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 63 transitions. [2020-12-01 16:35:31,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:31,145 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:31,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 43 states and 70 transitions. [2020-12-01 16:35:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2020-12-01 16:35:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:31,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:31,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:31,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:31,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 44 states and 72 transitions. [2020-12-01 16:35:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 72 transitions. [2020-12-01 16:35:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:35:31,691 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:31,704 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 16:35:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:31,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 45 states and 72 transitions. [2020-12-01 16:35:31,925 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2020-12-01 16:35:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:35:31,925 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:31,951 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 47 states and 78 transitions. [2020-12-01 16:35:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-12-01 16:35:32,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:32,265 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:32,383 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 51 states and 89 transitions. [2020-12-01 16:35:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 89 transitions. [2020-12-01 16:35:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:33,302 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 53 states and 95 transitions. [2020-12-01 16:35:33,719 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 95 transitions. [2020-12-01 16:35:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:33,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:33,817 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 55 states and 104 transitions. [2020-12-01 16:35:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 104 transitions. [2020-12-01 16:35:34,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:34,341 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:35:34,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 56 states and 104 transitions. [2020-12-01 16:35:34,609 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 104 transitions. [2020-12-01 16:35:34,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:34,610 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:34,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 57 states and 104 transitions. [2020-12-01 16:35:34,876 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2020-12-01 16:35:34,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:34,877 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:35,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 58 states and 104 transitions. [2020-12-01 16:35:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 104 transitions. [2020-12-01 16:35:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:35,311 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 60 states and 105 transitions. [2020-12-01 16:35:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 105 transitions. [2020-12-01 16:35:35,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:35,685 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:35:35,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:35,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 61 states and 105 transitions. [2020-12-01 16:35:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 105 transitions. [2020-12-01 16:35:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:35,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:35:36,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 61 states and 104 transitions. [2020-12-01 16:35:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 104 transitions. [2020-12-01 16:35:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:35:36,017 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:36,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:36,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 62 states and 104 transitions. [2020-12-01 16:35:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 104 transitions. [2020-12-01 16:35:36,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:35:36,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:36,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 64 states and 112 transitions. [2020-12-01 16:35:36,731 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 112 transitions. [2020-12-01 16:35:36,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:36,732 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 66 states and 121 transitions. [2020-12-01 16:35:37,345 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 121 transitions. [2020-12-01 16:35:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:37,346 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 67 states and 121 transitions. [2020-12-01 16:35:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 121 transitions. [2020-12-01 16:35:37,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:37,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:39,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 71 states and 141 transitions. [2020-12-01 16:35:39,291 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 141 transitions. [2020-12-01 16:35:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:39,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:39,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:39,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 72 states and 142 transitions. [2020-12-01 16:35:39,582 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 142 transitions. [2020-12-01 16:35:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:39,583 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 73 states and 143 transitions. [2020-12-01 16:35:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 143 transitions. [2020-12-01 16:35:39,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:39,863 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 74 states and 143 transitions. [2020-12-01 16:35:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 143 transitions. [2020-12-01 16:35:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:40,378 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 16:35:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:40,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 74 states and 142 transitions. [2020-12-01 16:35:40,519 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 142 transitions. [2020-12-01 16:35:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:40,521 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:40,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:40,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 75 states and 142 transitions. [2020-12-01 16:35:40,957 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 142 transitions. [2020-12-01 16:35:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:40,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 16:35:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:41,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 76 states and 142 transitions. [2020-12-01 16:35:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 142 transitions. [2020-12-01 16:35:41,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:41,224 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 77 states and 142 transitions. [2020-12-01 16:35:41,691 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 142 transitions. [2020-12-01 16:35:41,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:41,692 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:42,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:42,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 78 states and 142 transitions. [2020-12-01 16:35:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 142 transitions. [2020-12-01 16:35:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:42,164 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 79 states and 143 transitions. [2020-12-01 16:35:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 143 transitions. [2020-12-01 16:35:42,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:42,578 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 16:35:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 79 states and 142 transitions. [2020-12-01 16:35:42,767 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 142 transitions. [2020-12-01 16:35:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:35:42,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:43,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:43,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 81 states and 143 transitions. [2020-12-01 16:35:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 143 transitions. [2020-12-01 16:35:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:35:43,205 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:43,266 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 83 states and 152 transitions. [2020-12-01 16:35:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 152 transitions. [2020-12-01 16:35:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:43,657 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:35:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 83 states and 151 transitions. [2020-12-01 16:35:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 151 transitions. [2020-12-01 16:35:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:43,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:45,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 87 states and 166 transitions. [2020-12-01 16:35:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 166 transitions. [2020-12-01 16:35:45,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:45,303 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 90 states and 173 transitions. [2020-12-01 16:35:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 173 transitions. [2020-12-01 16:35:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:46,303 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 91 states and 173 transitions. [2020-12-01 16:35:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 173 transitions. [2020-12-01 16:35:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:46,871 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:47,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 92 states and 173 transitions. [2020-12-01 16:35:47,408 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 173 transitions. [2020-12-01 16:35:47,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:47,409 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:47,447 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 93 states and 173 transitions. [2020-12-01 16:35:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 173 transitions. [2020-12-01 16:35:47,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:47,939 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:35:48,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 93 states and 172 transitions. [2020-12-01 16:35:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 172 transitions. [2020-12-01 16:35:48,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:48,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 94 states and 172 transitions. [2020-12-01 16:35:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2020-12-01 16:35:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:48,230 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 96 states and 184 transitions. [2020-12-01 16:35:48,885 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 184 transitions. [2020-12-01 16:35:48,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:48,886 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 99 states and 190 transitions. [2020-12-01 16:35:49,953 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 190 transitions. [2020-12-01 16:35:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:49,954 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:50,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 100 states and 190 transitions. [2020-12-01 16:35:50,035 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 190 transitions. [2020-12-01 16:35:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:50,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 101 states and 190 transitions. [2020-12-01 16:35:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 190 transitions. [2020-12-01 16:35:50,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:50,638 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:35:50,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 102 states and 189 transitions. [2020-12-01 16:35:50,962 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 189 transitions. [2020-12-01 16:35:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:50,963 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:50,975 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:35:51,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 103 states and 189 transitions. [2020-12-01 16:35:51,321 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 189 transitions. [2020-12-01 16:35:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:35:51,322 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:35:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 104 states and 189 transitions. [2020-12-01 16:35:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 189 transitions. [2020-12-01 16:35:51,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:35:51,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-12-01 16:35:54,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:54,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 113 states and 196 transitions. [2020-12-01 16:35:54,427 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 196 transitions. [2020-12-01 16:35:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:35:54,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-12-01 16:35:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 116 states and 197 transitions. [2020-12-01 16:35:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 197 transitions. [2020-12-01 16:35:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 16:35:54,818 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-12-01 16:35:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:35:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 141 states and 225 transitions. [2020-12-01 16:35:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 225 transitions. [2020-12-01 16:35:58,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:35:58,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:35:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:35:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-12-01 16:36:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 140 states and 223 transitions. [2020-12-01 16:36:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 223 transitions. [2020-12-01 16:36:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:36:00,079 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 142 states and 234 transitions. [2020-12-01 16:36:01,567 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 234 transitions. [2020-12-01 16:36:01,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 16:36:01,567 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:36:01,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:36:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:36:01,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:36:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:36:01,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:36:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:36:01,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:36:01,922 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 65 iterations. [2020-12-01 16:36:01,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:36:01 ImpRootNode [2020-12-01 16:36:01,957 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:36:01,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:36:01,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:36:01,958 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:36:01,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:35:26" (3/4) ... [2020-12-01 16:36:01,961 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:36:02,017 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db9f6ab5-4234-468e-b80f-43aad01c85fa/bin/ukojak/witness.graphml [2020-12-01 16:36:02,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:36:02,020 INFO L168 Benchmark]: Toolchain (without parser) took 36674.55 ms. Allocated memory was 102.8 MB in the beginning and 474.0 MB in the end (delta: 371.2 MB). Free memory was 76.8 MB in the beginning and 401.2 MB in the end (delta: -324.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:36:02,020 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 102.8 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:36:02,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.26 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 80.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:36:02,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 102.8 MB. Free memory was 80.6 MB in the beginning and 79.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:36:02,023 INFO L168 Benchmark]: Boogie Preprocessor took 29.23 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 78.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:36:02,024 INFO L168 Benchmark]: RCFGBuilder took 348.90 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 65.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:36:02,025 INFO L168 Benchmark]: CodeCheck took 35806.17 ms. Allocated memory was 102.8 MB in the beginning and 474.0 MB in the end (delta: 371.2 MB). Free memory was 65.3 MB in the beginning and 403.3 MB in the end (delta: -338.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:36:02,026 INFO L168 Benchmark]: Witness Printer took 59.81 ms. Allocated memory is still 474.0 MB. Free memory was 403.3 MB in the beginning and 401.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:36:02,031 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, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.7s, OverallIterations: 65, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 673200844 SDslu, 0 SDs, 0 SdLazy, -1931248818 SolverSat, 1591303290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10580 GetRequests, 9630 SyntacticMatches, 592 SemanticMatches, 358 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65775 ImplicationChecksByTransitivity, 29.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1111 NumberOfCodeBlocks, 1111 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 1017 ConstructedInterpolants, 0 QuantifiedInterpolants, 204021 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 64 InterpolantComputations, 23 PerfectInterpolantSequences, 598/1775 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: 9]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L6] int* p = malloc(10 * sizeof(int)); [L8] int i = 0; [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND TRUE i == 5 [L11] free(p) [L11] free(p) [L11] free(p) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 102.8 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.26 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 80.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 102.8 MB. Free memory was 80.6 MB in the beginning and 79.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.23 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 78.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 348.90 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 65.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 35806.17 ms. Allocated memory was 102.8 MB in the beginning and 474.0 MB in the end (delta: 371.2 MB). Free memory was 65.3 MB in the beginning and 403.3 MB in the end (delta: -338.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Witness Printer took 59.81 ms. Allocated memory is still 474.0 MB. Free memory was 403.3 MB in the beginning and 401.2 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...