./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c783d9214012f4bff6327cd9f7b291047ddaff08 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:12:29,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:12:29,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:12:29,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:12:29,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:12:29,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:12:29,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:12:29,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:12:29,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:12:29,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:12:29,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:12:29,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:12:29,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:12:29,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:12:29,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:12:29,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:12:29,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:12:29,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:12:29,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:12:29,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:12:29,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:12:29,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:12:29,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:12:29,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:12:29,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:12:29,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:12:29,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:12:29,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:12:29,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:12:29,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:12:29,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:12:29,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:12:29,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:12:29,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:12:29,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:12:29,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:12:29,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:12:29,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:12:29,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:12:29,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:12:29,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:12:29,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-12-01 17:12:29,704 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:12:29,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:12:29,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:12:29,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:12:29,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:12:29,707 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:12:29,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:12:29,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:12:29,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:12:29,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:12:29,709 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 17:12:29,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 17:12:29,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:12:29,710 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:12:29,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:12:29,711 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:12:29,711 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:12:29,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:12:29,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:12:29,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:12:29,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:12:29,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:12:29,713 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:12:29,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:12:29,714 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_d783e51f-feb8-4160-825d-78b67bb5bfc7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c783d9214012f4bff6327cd9f7b291047ddaff08 [2020-12-01 17:12:30,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:12:30,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:12:30,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:12:30,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:12:30,070 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:12:30,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-12-01 17:12:30,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/data/9a13f83c4/2294abd20baf43e6822b87948e7990b5/FLAG15d34cc68 [2020-12-01 17:12:30,779 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:12:30,780 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-12-01 17:12:30,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/data/9a13f83c4/2294abd20baf43e6822b87948e7990b5/FLAG15d34cc68 [2020-12-01 17:12:31,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/data/9a13f83c4/2294abd20baf43e6822b87948e7990b5 [2020-12-01 17:12:31,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:12:31,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:12:31,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:12:31,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:12:31,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:12:31,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da43797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31, skipping insertion in model container [2020-12-01 17:12:31,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:12:31,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:12:31,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:12:31,703 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:12:31,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:12:31,844 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:12:31,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31 WrapperNode [2020-12-01 17:12:31,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:12:31,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:12:31,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:12:31,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:12:31,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:12:31,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:12:31,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:12:31,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:12:31,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:31,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... [2020-12-01 17:12:32,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:12:32,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:12:32,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:12:32,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:12:32,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/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 17:12:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 17:12:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 17:12:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 17:12:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 17:12:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:12:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 17:12:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 17:12:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:12:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:12:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:12:32,924 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:12:32,924 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-01 17:12:32,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:12:32 BoogieIcfgContainer [2020-12-01 17:12:32,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:12:32,928 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:12:32,928 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:12:32,939 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:12:32,940 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:12:32" (1/1) ... [2020-12-01 17:12:32,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:12:32,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 93 states and 107 transitions. [2020-12-01 17:12:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2020-12-01 17:12:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 17:12:32,998 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:33,149 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 17:12:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 92 states and 106 transitions. [2020-12-01 17:12:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-12-01 17:12:33,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 17:12:33,178 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:33,237 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 17:12:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:33,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 91 states and 105 transitions. [2020-12-01 17:12:33,350 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2020-12-01 17:12:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 17:12:33,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:33,405 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 17:12:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 90 states and 104 transitions. [2020-12-01 17:12:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2020-12-01 17:12:33,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 17:12:33,433 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:33,511 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 17:12:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 89 states and 103 transitions. [2020-12-01 17:12:33,539 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 103 transitions. [2020-12-01 17:12:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:12:33,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:33,668 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 17:12:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 88 states and 101 transitions. [2020-12-01 17:12:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2020-12-01 17:12:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:12:33,729 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:33,825 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 17:12:33,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 91 states and 106 transitions. [2020-12-01 17:12:33,996 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2020-12-01 17:12:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:12:33,997 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:34,023 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 17:12:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:34,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 90 states and 105 transitions. [2020-12-01 17:12:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2020-12-01 17:12:34,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:12:34,041 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:34,093 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 17:12:34,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:34,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 89 states and 104 transitions. [2020-12-01 17:12:34,256 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 104 transitions. [2020-12-01 17:12:34,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:12:34,257 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:34,282 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 17:12:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 94 states and 113 transitions. [2020-12-01 17:12:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 113 transitions. [2020-12-01 17:12:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:12:34,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:34,531 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 17:12:34,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:34,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 99 states and 123 transitions. [2020-12-01 17:12:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 123 transitions. [2020-12-01 17:12:34,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:12:34,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:34,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:12:34,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 98 states and 122 transitions. [2020-12-01 17:12:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 122 transitions. [2020-12-01 17:12:34,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:12:34,816 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:34,910 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 17:12:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:34,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 97 states and 121 transitions. [2020-12-01 17:12:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 121 transitions. [2020-12-01 17:12:34,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:12:34,961 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:35,061 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 17:12:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 99 states and 124 transitions. [2020-12-01 17:12:35,554 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2020-12-01 17:12:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:12:35,555 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:35,730 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 17:12:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 101 states and 127 transitions. [2020-12-01 17:12:36,549 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2020-12-01 17:12:36,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:12:36,552 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:36,594 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 17:12:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 100 states and 126 transitions. [2020-12-01 17:12:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2020-12-01 17:12:36,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:12:36,613 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:36,749 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 17:12:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 99 states and 125 transitions. [2020-12-01 17:12:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 125 transitions. [2020-12-01 17:12:37,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:12:37,087 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:37,225 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 17:12:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 100 states and 128 transitions. [2020-12-01 17:12:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 128 transitions. [2020-12-01 17:12:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:12:37,372 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:37,399 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 17:12:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 100 states and 127 transitions. [2020-12-01 17:12:37,502 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2020-12-01 17:12:37,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:12:37,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:37,518 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 17:12:37,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 101 states and 129 transitions. [2020-12-01 17:12:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 129 transitions. [2020-12-01 17:12:37,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:12:37,535 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:37,551 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 17:12:37,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:37,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 102 states and 130 transitions. [2020-12-01 17:12:37,565 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 130 transitions. [2020-12-01 17:12:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:12:37,570 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:37,602 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 17:12:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 101 states and 129 transitions. [2020-12-01 17:12:37,635 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 129 transitions. [2020-12-01 17:12:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:12:37,636 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:37,783 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 17:12:38,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 104 states and 134 transitions. [2020-12-01 17:12:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2020-12-01 17:12:38,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:12:38,095 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:38,107 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 17:12:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 101 states and 130 transitions. [2020-12-01 17:12:38,122 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 130 transitions. [2020-12-01 17:12:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:12:38,124 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:38,143 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 17:12:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 98 states and 127 transitions. [2020-12-01 17:12:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 127 transitions. [2020-12-01 17:12:38,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:12:38,159 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:38,183 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 17:12:38,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 100 states and 130 transitions. [2020-12-01 17:12:38,208 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 130 transitions. [2020-12-01 17:12:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:12:38,208 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:38,351 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 17:12:39,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:39,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 104 states and 139 transitions. [2020-12-01 17:12:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2020-12-01 17:12:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:12:39,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:39,065 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 17:12:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 103 states and 138 transitions. [2020-12-01 17:12:39,090 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions. [2020-12-01 17:12:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:12:39,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:39,167 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 17:12:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:39,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 102 states and 137 transitions. [2020-12-01 17:12:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 137 transitions. [2020-12-01 17:12:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:12:39,184 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:12:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 108 states and 147 transitions. [2020-12-01 17:12:40,899 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2020-12-01 17:12:40,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:12:40,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:41,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:12:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:41,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 95 states and 126 transitions. [2020-12-01 17:12:41,966 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 126 transitions. [2020-12-01 17:12:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:12:41,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:42,168 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 17:12:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 97 states and 129 transitions. [2020-12-01 17:12:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2020-12-01 17:12:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:12:42,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:43,000 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 17:12:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 99 states and 132 transitions. [2020-12-01 17:12:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 132 transitions. [2020-12-01 17:12:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:12:44,169 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:44,185 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 17:12:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:44,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 98 states and 131 transitions. [2020-12-01 17:12:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 131 transitions. [2020-12-01 17:12:44,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:12:44,201 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:44,475 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 17:12:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 100 states and 135 transitions. [2020-12-01 17:12:44,788 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 135 transitions. [2020-12-01 17:12:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:12:44,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:44,807 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 17:12:44,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:44,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 99 states and 134 transitions. [2020-12-01 17:12:44,825 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 134 transitions. [2020-12-01 17:12:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:12:44,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:44,871 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 17:12:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:44,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 100 states and 137 transitions. [2020-12-01 17:12:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2020-12-01 17:12:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:12:44,892 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:44,915 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 17:12:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 101 states and 139 transitions. [2020-12-01 17:12:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 139 transitions. [2020-12-01 17:12:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:12:45,220 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:45,275 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 17:12:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 102 states and 140 transitions. [2020-12-01 17:12:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 140 transitions. [2020-12-01 17:12:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:12:45,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:46,064 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 17:12:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 108 states and 152 transitions. [2020-12-01 17:12:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 152 transitions. [2020-12-01 17:12:47,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:12:47,733 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:47,918 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 17:12:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 114 states and 162 transitions. [2020-12-01 17:12:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2020-12-01 17:12:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:12:49,765 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:50,292 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 17:12:53,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 125 states and 181 transitions. [2020-12-01 17:12:53,765 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 181 transitions. [2020-12-01 17:12:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:12:53,766 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:54,067 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 17:12:54,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 127 states and 183 transitions. [2020-12-01 17:12:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2020-12-01 17:12:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:12:54,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:55,735 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 17:12:58,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:58,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 131 states and 190 transitions. [2020-12-01 17:12:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2020-12-01 17:12:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:12:58,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:59,313 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 17:13:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 133 states and 198 transitions. [2020-12-01 17:13:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 198 transitions. [2020-12-01 17:13:01,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:13:01,471 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:01,496 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 17:13:01,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 136 states and 204 transitions. [2020-12-01 17:13:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 204 transitions. [2020-12-01 17:13:01,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:13:01,536 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:01,568 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 17:13:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 139 states and 210 transitions. [2020-12-01 17:13:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 210 transitions. [2020-12-01 17:13:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 17:13:01,618 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:01,637 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 17:13:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 145 states and 227 transitions. [2020-12-01 17:13:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 227 transitions. [2020-12-01 17:13:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 17:13:03,316 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:13:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 151 states and 244 transitions. [2020-12-01 17:13:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 244 transitions. [2020-12-01 17:13:04,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 17:13:04,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:05,294 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 17:13:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 157 states and 259 transitions. [2020-12-01 17:13:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 259 transitions. [2020-12-01 17:13:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:09,875 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:13:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 165 states and 272 transitions. [2020-12-01 17:13:16,036 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 272 transitions. [2020-12-01 17:13:16,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:16,037 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:16,529 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 17:13:23,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:23,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 173 states and 285 transitions. [2020-12-01 17:13:23,175 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 285 transitions. [2020-12-01 17:13:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:23,175 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:23,457 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 17:13:23,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 174 states and 286 transitions. [2020-12-01 17:13:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 286 transitions. [2020-12-01 17:13:23,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:23,772 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:23,788 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 17:13:23,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 175 states and 287 transitions. [2020-12-01 17:13:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 287 transitions. [2020-12-01 17:13:23,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:23,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:24,163 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 17:13:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:24,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 177 states and 297 transitions. [2020-12-01 17:13:24,446 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 297 transitions. [2020-12-01 17:13:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:24,447 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:25,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:13:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 180 states and 304 transitions. [2020-12-01 17:13:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 304 transitions. [2020-12-01 17:13:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:30,975 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:31,514 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 17:13:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 182 states and 310 transitions. [2020-12-01 17:13:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 310 transitions. [2020-12-01 17:13:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 17:13:33,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:34,414 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 17:13:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 191 states and 331 transitions. [2020-12-01 17:13:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 331 transitions. [2020-12-01 17:13:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 17:13:46,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:48,783 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 17:13:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 201 states and 357 transitions. [2020-12-01 17:13:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 357 transitions. [2020-12-01 17:13:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 17:13:59,510 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:14:02,051 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 17:14:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:14:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 211 states and 383 transitions. [2020-12-01 17:14:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 383 transitions. [2020-12-01 17:14:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 17:14:11,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:14:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:14:11,884 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 17:14:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:14:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 217 states and 392 transitions. [2020-12-01 17:14:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 392 transitions. [2020-12-01 17:14:17,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 17:14:17,331 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:14:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:14:17,392 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 17:14:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:14:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 223 states and 401 transitions. [2020-12-01 17:14:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 401 transitions. [2020-12-01 17:14:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 17:14:23,603 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:14:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:14:24,052 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 17:14:28,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:14:28,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 226 states and 408 transitions. [2020-12-01 17:14:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 408 transitions. [2020-12-01 17:14:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 17:14:28,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:14:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:14:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:14:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:14:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 237 states and 444 transitions. [2020-12-01 17:14:51,025 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 444 transitions. [2020-12-01 17:14:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 17:14:51,025 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:14:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:14:55,958 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 17:15:00,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:15:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 238 states and 447 transitions. [2020-12-01 17:15:00,924 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 447 transitions. [2020-12-01 17:15:00,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 17:15:00,925 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:15:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:15:00,941 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 17:15:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:15:00,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 235 states and 438 transitions. [2020-12-01 17:15:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 438 transitions. [2020-12-01 17:15:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 17:15:00,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:15:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:15:00,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:15:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:15:00,973 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:15:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:15:01,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:15:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:15:01,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:15:01,924 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 66 iterations. [2020-12-01 17:15:01,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:15:01 ImpRootNode [2020-12-01 17:15:01,959 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:15:01,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:15:01,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:15:01,960 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:15:01,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:12:32" (3/4) ... [2020-12-01 17:15:01,962 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:15:02,014 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d783e51f-feb8-4160-825d-78b67bb5bfc7/bin/ukojak/witness.graphml [2020-12-01 17:15:02,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:15:02,016 INFO L168 Benchmark]: Toolchain (without parser) took 150909.84 ms. Allocated memory was 140.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 111.2 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 152.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:15:02,017 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 81.8 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:15:02,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.17 ms. Allocated memory is still 140.5 MB. Free memory was 111.2 MB in the beginning and 105.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:15:02,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.84 ms. Allocated memory is still 140.5 MB. Free memory was 105.8 MB in the beginning and 104.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:15:02,020 INFO L168 Benchmark]: Boogie Preprocessor took 76.17 ms. Allocated memory is still 140.5 MB. Free memory was 104.2 MB in the beginning and 102.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:15:02,020 INFO L168 Benchmark]: RCFGBuilder took 912.71 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 104.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:15:02,021 INFO L168 Benchmark]: CodeCheck took 149031.76 ms. Allocated memory was 140.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 104.4 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 144.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:15:02,022 INFO L168 Benchmark]: Witness Printer took 54.37 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:15:02,027 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, 93 locations, 49 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 148.9s, OverallIterations: 66, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 303122 SDtfs, -1534032256 SDslu, 1960329008 SDs, 0 SdLazy, -589119628 SolverSat, -1469888036 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7183 GetRequests, 6359 SyntacticMatches, 190 SemanticMatches, 634 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189643 ImplicationChecksByTransitivity, 142.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 828 NumberOfCodeBlocks, 828 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 744 ConstructedInterpolants, 0 QuantifiedInterpolants, 76596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 65 InterpolantComputations, 53 PerfectInterpolantSequences, 9/33 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: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); [L1000] head->next = ((void*)0) [L1001] head->data = 0 [L1003] SLL* x = head; [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) [L1018] x->data = 1 [L1019] x->next = head [L1020] head = x [L1040] x = head [L1043] EXPR x->data [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next [L1049] x = x->next [L1050] COND TRUE \read(*x) [L1052] EXPR x->data [L1052] COND TRUE x->data != 1 [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-simple-white-blue-2.c", 16, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 81.8 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 736.17 ms. Allocated memory is still 140.5 MB. Free memory was 111.2 MB in the beginning and 105.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.84 ms. Allocated memory is still 140.5 MB. Free memory was 105.8 MB in the beginning and 104.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.17 ms. Allocated memory is still 140.5 MB. Free memory was 104.2 MB in the beginning and 102.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 912.71 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 104.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. * CodeCheck took 149031.76 ms. Allocated memory was 140.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 104.4 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 144.7 MB. Max. memory is 16.1 GB. * Witness Printer took 54.37 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB 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...