./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label21.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label21.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea39d82b53f681c585f6776f5ae93dc22cb65dc3 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:33:11,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:33:11,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:33:11,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:33:11,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:33:11,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:33:11,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:33:11,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:33:11,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:33:11,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:33:11,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:33:11,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:33:11,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:33:11,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:33:11,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:33:11,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:33:11,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:33:11,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:33:11,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:33:11,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:33:11,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:33:11,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:33:11,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:33:11,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:33:11,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:33:11,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:33:11,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:33:11,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:33:11,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:33:11,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:33:11,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:33:11,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:33:11,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:33:11,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:33:11,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:33:11,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:33:11,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:33:11,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:33:11,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:33:11,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:33:11,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:33:11,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:33:11,900 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:33:11,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:33:11,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:33:11,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:33:11,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:33:11,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:33:11,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:33:11,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:33:11,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:33:11,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:33:11,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:33:11,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:33:11,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:33:11,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:33:11,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:33:11,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:33:11,908 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:33:11,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:33:11,909 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:33:11,909 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:33:11,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:33:11,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:33:11,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:33:11,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:33:11,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:33:11,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:33:11,912 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:33:11,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:33:11,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:33:11,912 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_ad670cfa-850f-4423-94f9-9c21d3baa14d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea39d82b53f681c585f6776f5ae93dc22cb65dc3 [2020-12-01 16:33:12,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:33:12,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:33:12,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:33:12,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:33:12,367 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:33:12,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem16_label21.c [2020-12-01 16:33:12,480 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/data/6394c465f/9397bfc7adf2467b81afda2258e64126/FLAG672662db1 [2020-12-01 16:33:13,448 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:33:13,451 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/sv-benchmarks/c/eca-rers2012/Problem16_label21.c [2020-12-01 16:33:13,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/data/6394c465f/9397bfc7adf2467b81afda2258e64126/FLAG672662db1 [2020-12-01 16:33:13,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/data/6394c465f/9397bfc7adf2467b81afda2258e64126 [2020-12-01 16:33:13,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:33:13,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:33:14,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:33:14,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:33:14,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:33:14,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:33:13" (1/1) ... [2020-12-01 16:33:14,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec880d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:14, skipping insertion in model container [2020-12-01 16:33:14,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:33:13" (1/1) ... [2020-12-01 16:33:14,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:33:14,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:33:14,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:33:14,951 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:33:15,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:33:15,384 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:33:15,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15 WrapperNode [2020-12-01 16:33:15,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:33:15,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:33:15,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:33:15,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:33:15,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:33:15,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:33:15,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:33:15,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:33:15,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... [2020-12-01 16:33:15,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:33:15,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:33:15,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:33:15,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:33:15,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:33:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:33:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:33:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:33:15,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:34:33,082 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:34:33,083 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-01 16:34:33,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:34:33 BoogieIcfgContainer [2020-12-01 16:34:33,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:34:33,088 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:34:33,088 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:34:33,102 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:34:33,103 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:34:33" (1/1) ... [2020-12-01 16:34:33,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:34:33,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:34:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 16:34:33,156 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 16:34:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:34:33,159 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:34:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:34:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:34:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:34:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 16:34:33,584 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 16:34:33,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:34:33,584 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:34:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:34:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:34:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:34:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-12-01 16:34:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-12-01 16:34:37,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:34:37,694 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:34:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:34:41,172 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2020-12-01 16:34:41,349 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-12-01 16:34:41,704 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-12-01 16:34:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:34:44,403 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2020-12-01 16:34:45,624 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2020-12-01 16:34:46,071 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-12-01 16:34:46,676 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-01 16:34:46,869 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-01 16:34:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:34:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 30 states and 55 transitions. [2020-12-01 16:34:47,467 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 55 transitions. [2020-12-01 16:34:47,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:34:47,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:34:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:34:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:34:51,099 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-01 16:34:51,314 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-01 16:34:51,728 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-12-01 16:34:51,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:34:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 33 states and 61 transitions. [2020-12-01 16:34:51,757 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2020-12-01 16:34:51,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:34:51,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:34:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:34:54,475 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 16:34:54,667 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-01 16:34:54,999 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-01 16:34:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:34:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 31 states and 59 transitions. [2020-12-01 16:34:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 59 transitions. [2020-12-01 16:34:55,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:34:55,598 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-12-01 16:34:55,619 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:34:55,958 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 23 [2020-12-01 16:34:56,259 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 25 [2020-12-01 16:34:56,562 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 25 [2020-12-01 16:34:56,788 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 25 [2020-12-01 16:34:56,788 INFO L569 CodeCheckObserver]: Invariant with dag size 23 [2020-12-01 16:34:56,816 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:34:56,816 INFO L569 CodeCheckObserver]: Invariant with dag size 23 [2020-12-01 16:34:56,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:34:56 ImpRootNode [2020-12-01 16:34:56,818 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:34:56,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:34:56,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:34:56,819 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:34:56,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:34:33" (3/4) ... [2020-12-01 16:34:56,823 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:34:56,882 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 371 nodes and edges [2020-12-01 16:34:56,888 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 16:34:56,894 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:34:56,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 16:34:57,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ad670cfa-850f-4423-94f9-9c21d3baa14d/bin/ukojak/witness.graphml [2020-12-01 16:34:57,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:34:57,204 INFO L168 Benchmark]: Toolchain (without parser) took 103204.34 ms. Allocated memory was 88.1 MB in the beginning and 5.8 GB in the end (delta: 5.7 GB). Free memory was 53.5 MB in the beginning and 5.0 GB in the end (delta: -4.9 GB). Peak memory consumption was 794.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:34:57,205 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:34:57,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1384.86 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 53.3 MB in the beginning and 78.1 MB in the end (delta: -24.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:34:57,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 217.88 ms. Allocated memory is still 113.2 MB. Free memory was 78.1 MB in the beginning and 54.5 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:34:57,206 INFO L168 Benchmark]: Boogie Preprocessor took 269.33 ms. Allocated memory is still 113.2 MB. Free memory was 54.5 MB in the beginning and 64.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:34:57,206 INFO L168 Benchmark]: RCFGBuilder took 77209.09 ms. Allocated memory was 113.2 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 64.4 MB in the beginning and 4.7 GB in the end (delta: -4.7 GB). Peak memory consumption was 843.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:34:57,207 INFO L168 Benchmark]: CodeCheck took 23730.85 ms. Allocated memory was 5.4 GB in the beginning and 5.8 GB in the end (delta: 432.0 MB). Free memory was 4.7 GB in the beginning and 5.0 GB in the end (delta: -272.6 MB). Peak memory consumption was 158.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:34:57,208 INFO L168 Benchmark]: Witness Printer took 383.98 ms. Allocated memory is still 5.8 GB. Free memory was 5.0 GB in the beginning and 5.0 GB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:34:57,211 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.4s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 384 SDslu, 280 SDs, 0 SdLazy, 1204 SolverSat, 184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 533 GetRequests, 471 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 11728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 21/44 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: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((((a12 <= 4 || a18 + 79 <= 0) || 5 < a12) || a15 <= 2) || 3 < a15) || 9 < a16) || a16 <= 8) || 135 <= a18 - InvariantResult [Line: 1777]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((a12 <= 4 || a18 + 79 <= 0) || a15 <= 2) || 10 <= a16) || 3 < a15) || a16 <= 8) || 6 <= a12) || 135 <= a18 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1384.86 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 53.3 MB in the beginning and 78.1 MB in the end (delta: -24.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 217.88 ms. Allocated memory is still 113.2 MB. Free memory was 78.1 MB in the beginning and 54.5 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 269.33 ms. Allocated memory is still 113.2 MB. Free memory was 54.5 MB in the beginning and 64.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 77209.09 ms. Allocated memory was 113.2 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 64.4 MB in the beginning and 4.7 GB in the end (delta: -4.7 GB). Peak memory consumption was 843.4 MB. Max. memory is 16.1 GB. * CodeCheck took 23730.85 ms. Allocated memory was 5.4 GB in the beginning and 5.8 GB in the end (delta: 432.0 MB). Free memory was 4.7 GB in the beginning and 5.0 GB in the end (delta: -272.6 MB). Peak memory consumption was 158.3 MB. Max. memory is 16.1 GB. * Witness Printer took 383.98 ms. Allocated memory is still 5.8 GB. Free memory was 5.0 GB in the beginning and 5.0 GB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...