./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/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 7862960b0aa057ac19174563f251d134d1269c2b ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:21:35,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:21:35,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:21:35,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:21:35,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:21:35,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:21:35,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:21:35,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:21:35,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:21:35,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:21:35,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:21:35,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:21:35,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:21:35,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:21:35,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:21:35,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:21:35,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:21:35,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:21:35,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:21:35,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:21:35,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:21:35,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:21:35,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:21:35,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:21:35,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:21:35,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:21:35,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:21:35,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:21:35,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:21:35,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:21:35,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:21:35,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:21:35,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:21:35,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:21:35,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:21:35,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:21:35,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:21:35,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:21:35,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:21:35,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:21:35,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:21:35,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 18:21:35,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:21:35,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:21:35,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:21:35,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:21:35,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:21:35,818 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:21:35,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:21:35,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:21:35,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:21:35,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:21:35,822 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:21:35,823 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:21:35,823 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:21:35,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:21:35,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:21:35,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:21:35,824 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 18:21:35,824 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 18:21:35,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:21:35,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:21:35,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 18:21:35,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:21:35,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:21:35,827 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 18:21:35,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:21:35,827 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_2fb2feee-6091-43d7-8a94-69bf3ce72d42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7862960b0aa057ac19174563f251d134d1269c2b [2020-11-29 18:21:36,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:21:36,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:21:36,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:21:36,081 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:21:36,081 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:21:36,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/../../sv-benchmarks/c/verifythis/elimination_max_rec.c [2020-11-29 18:21:36,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/data/50d31c475/99123a45165345a0be600812f0f4a9d2/FLAG423ba2884 [2020-11-29 18:21:36,630 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:21:36,630 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/sv-benchmarks/c/verifythis/elimination_max_rec.c [2020-11-29 18:21:36,637 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/data/50d31c475/99123a45165345a0be600812f0f4a9d2/FLAG423ba2884 [2020-11-29 18:21:37,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/data/50d31c475/99123a45165345a0be600812f0f4a9d2 [2020-11-29 18:21:37,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:21:37,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:21:37,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:37,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:21:37,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:21:37,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4752633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37, skipping insertion in model container [2020-11-29 18:21:37,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:21:37,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:21:37,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:37,317 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:21:37,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:37,375 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:21:37,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37 WrapperNode [2020-11-29 18:21:37,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:37,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:37,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:21:37,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:21:37,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:37,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:21:37,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:21:37,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:21:37,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... [2020-11-29 18:21:37,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:21:37,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:21:37,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:21:37,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:21:37,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 18:21:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:21:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-11-29 18:21:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-11-29 18:21:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:21:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:21:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:21:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:21:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:21:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:21:38,171 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:21:38,171 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 18:21:38,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:38 BoogieIcfgContainer [2020-11-29 18:21:38,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:21:38,174 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 18:21:38,175 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 18:21:38,186 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 18:21:38,187 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:38" (1/1) ... [2020-11-29 18:21:38,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 38 states and 41 transitions. [2020-11-29 18:21:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-11-29 18:21:38,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 18:21:38,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:38,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 41 states and 45 transitions. [2020-11-29 18:21:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-11-29 18:21:38,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:21:38,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:39,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 46 states and 53 transitions. [2020-11-29 18:21:39,146 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2020-11-29 18:21:39,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:21:39,147 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:39,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 51 states and 61 transitions. [2020-11-29 18:21:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2020-11-29 18:21:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 18:21:40,839 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:40,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:40,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 60 transitions. [2020-11-29 18:21:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-11-29 18:21:40,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 18:21:40,961 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 59 transitions. [2020-11-29 18:21:41,025 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2020-11-29 18:21:41,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 18:21:41,025 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:42,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 53 states and 64 transitions. [2020-11-29 18:21:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2020-11-29 18:21:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:21:42,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:42,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:42,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:42,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 63 transitions. [2020-11-29 18:21:42,593 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2020-11-29 18:21:42,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:21:42,594 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 51 states and 62 transitions. [2020-11-29 18:21:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2020-11-29 18:21:42,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:21:42,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 50 states and 61 transitions. [2020-11-29 18:21:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2020-11-29 18:21:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:21:44,769 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:48,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:48,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 59 states and 76 transitions. [2020-11-29 18:21:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2020-11-29 18:21:48,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:21:48,188 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:48,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 59 states and 75 transitions. [2020-11-29 18:21:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2020-11-29 18:21:48,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:21:48,944 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:51,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 65 states and 86 transitions. [2020-11-29 18:21:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2020-11-29 18:21:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:21:51,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 18:21:52,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 67 states and 89 transitions. [2020-11-29 18:21:52,063 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2020-11-29 18:21:52,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:21:52,063 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 71 states and 101 transitions. [2020-11-29 18:21:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2020-11-29 18:21:55,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:21:55,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:55,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:56,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:56,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 74 states and 104 transitions. [2020-11-29 18:21:56,941 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 104 transitions. [2020-11-29 18:21:56,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 18:21:56,942 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 18:21:56,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:21:56,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 73 states and 103 transitions. [2020-11-29 18:21:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 103 transitions. [2020-11-29 18:21:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 18:21:56,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:21:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:22:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:22:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 79 states and 133 transitions. [2020-11-29 18:22:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 133 transitions. [2020-11-29 18:22:03,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:22:03,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:22:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:22:07,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:22:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 85 states and 150 transitions. [2020-11-29 18:22:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 150 transitions. [2020-11-29 18:22:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 18:22:07,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:22:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:22:13,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:22:13,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 91 states and 165 transitions. [2020-11-29 18:22:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 165 transitions. [2020-11-29 18:22:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 18:22:13,477 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:22:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:22:19,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:22:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 94 states and 184 transitions. [2020-11-29 18:22:19,353 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 184 transitions. [2020-11-29 18:22:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 18:22:19,353 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:22:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:22:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:22:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 97 states and 202 transitions. [2020-11-29 18:22:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-29 18:22:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 18:22:28,913 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:22:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-29 18:22:31,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:22:31,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 42 states and 54 transitions. [2020-11-29 18:22:31,911 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2020-11-29 18:22:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 18:22:31,911 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:22:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:35,065 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:22:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:22:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 51 states and 79 transitions. [2020-11-29 18:22:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 79 transitions. [2020-11-29 18:22:55,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-29 18:22:55,241 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:22:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:58,827 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 18:23:06,922 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-11-29 18:23:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:23:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 42 states and 55 transitions. [2020-11-29 18:23:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2020-11-29 18:23:12,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:23:12,868 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2020-11-29 18:23:12,873 INFO L765 CodeCheckObserver]: All specifications hold 14 specifications checked. All of them hold [2020-11-29 18:23:13,715 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-29 18:23:13,716 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 18:23:13,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 06:23:13 ImpRootNode [2020-11-29 18:23:13,720 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 18:23:13,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:23:13,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:23:13,721 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:23:13,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:38" (3/4) ... [2020-11-29 18:23:13,724 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:23:13,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2020-11-29 18:23:13,734 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2020-11-29 18:23:13,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 18:23:13,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:23:13,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:23:13,809 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2fb2feee-6091-43d7-8a94-69bf3ce72d42/bin/ukojak/witness.graphml [2020-11-29 18:23:13,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:23:13,810 INFO L168 Benchmark]: Toolchain (without parser) took 96785.05 ms. Allocated memory was 123.7 MB in the beginning and 851.4 MB in the end (delta: 727.7 MB). Free memory was 89.9 MB in the beginning and 685.7 MB in the end (delta: -595.8 MB). Peak memory consumption was 131.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,811 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:23:13,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.36 ms. Allocated memory is still 123.7 MB. Free memory was 89.7 MB in the beginning and 97.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.85 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 95.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,813 INFO L168 Benchmark]: Boogie Preprocessor took 40.54 ms. Allocated memory is still 123.7 MB. Free memory was 95.9 MB in the beginning and 94.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,813 INFO L168 Benchmark]: RCFGBuilder took 691.56 ms. Allocated memory is still 123.7 MB. Free memory was 94.6 MB in the beginning and 64.5 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,814 INFO L168 Benchmark]: CodeCheck took 95545.88 ms. Allocated memory was 123.7 MB in the beginning and 851.4 MB in the end (delta: 727.7 MB). Free memory was 64.5 MB in the beginning and 688.9 MB in the end (delta: -624.3 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,815 INFO L168 Benchmark]: Witness Printer took 88.33 ms. Allocated memory is still 851.4 MB. Free memory was 688.9 MB in the beginning and 685.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,822 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 2 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 94.6s, OverallIterations: 25, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 86106752 SDtfs, 79623274 SDslu, 27021864 SDs, 0 SdLazy, 528132756 SolverSat, 150953242 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4611 GetRequests, 3993 SyntacticMatches, 110 SemanticMatches, 508 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121692 ImplicationChecksByTransitivity, 90.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 81102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 12 PerfectInterpolantSequences, 28/135 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 - PositiveResult [Line: 41]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 48]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 48]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 48]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 25]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 35]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 34]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 34]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 35]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 351.36 ms. Allocated memory is still 123.7 MB. Free memory was 89.7 MB in the beginning and 97.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.85 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 95.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.54 ms. Allocated memory is still 123.7 MB. Free memory was 95.9 MB in the beginning and 94.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 691.56 ms. Allocated memory is still 123.7 MB. Free memory was 94.6 MB in the beginning and 64.5 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * CodeCheck took 95545.88 ms. Allocated memory was 123.7 MB in the beginning and 851.4 MB in the end (delta: 727.7 MB). Free memory was 64.5 MB in the beginning and 688.9 MB in the end (delta: -624.3 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. * Witness Printer took 88.33 ms. Allocated memory is still 851.4 MB. Free memory was 688.9 MB in the beginning and 685.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...