./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:43:08,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:43:08,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:43:08,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:43:08,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:43:08,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:43:08,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:43:08,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:43:08,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:43:08,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:43:08,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:43:08,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:43:08,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:43:08,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:43:08,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:43:08,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:43:08,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:43:08,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:43:08,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:43:08,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:43:08,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:43:08,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:43:08,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:43:08,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:43:08,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:43:08,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:43:08,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:43:08,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:43:08,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:43:08,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:43:08,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:43:08,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:43:08,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:43:08,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:43:08,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:43:08,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:43:08,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:43:08,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:43:08,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:43:08,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:43:08,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:43:08,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:43:08,773 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:43:08,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:43:08,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:43:08,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:43:08,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:43:08,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:43:08,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:43:08,775 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:43:08,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:43:08,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:43:08,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:43:08,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:43:08,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:43:08,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:43:08,776 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:43:08,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:43:08,777 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:43:08,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:43:08,777 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:43:08,777 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:43:08,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:43:08,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:43:08,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:43:08,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:43:08,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:43:08,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:43:08,779 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:43:08,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:43:08,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:43:08,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 [2019-11-26 02:43:08,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:43:08,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:43:08,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:43:08,942 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:43:08,943 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:43:08,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-26 02:43:09,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/data/5dca3d379/21a8e6a4b84b4765aa3398490010edb4/FLAGfc98bc066 [2019-11-26 02:43:09,464 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:43:09,464 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-26 02:43:09,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/data/5dca3d379/21a8e6a4b84b4765aa3398490010edb4/FLAGfc98bc066 [2019-11-26 02:43:09,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/data/5dca3d379/21a8e6a4b84b4765aa3398490010edb4 [2019-11-26 02:43:09,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:43:09,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:43:09,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:09,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:43:09,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:43:09,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:09" (1/1) ... [2019-11-26 02:43:09,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b797833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:09, skipping insertion in model container [2019-11-26 02:43:09,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:09" (1/1) ... [2019-11-26 02:43:09,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:43:09,840 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:43:10,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:10,186 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:43:10,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:10,301 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:43:10,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10 WrapperNode [2019-11-26 02:43:10,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:10,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:10,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:43:10,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:43:10,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:10,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:43:10,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:43:10,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:43:10,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... [2019-11-26 02:43:10,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:43:10,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:43:10,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:43:10,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:43:10,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/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 [2019-11-26 02:43:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:43:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-26 02:43:10,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-26 02:43:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-26 02:43:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-26 02:43:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-26 02:43:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-26 02:43:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-26 02:43:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-26 02:43:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-26 02:43:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-26 02:43:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:43:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-26 02:43:10,486 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-26 02:43:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:43:10,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:43:11,403 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:43:11,403 INFO L284 CfgBuilder]: Removed 40 assume(true) statements. [2019-11-26 02:43:11,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:11 BoogieIcfgContainer [2019-11-26 02:43:11,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:43:11,404 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:43:11,405 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:43:11,414 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:43:11,414 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:11" (1/1) ... [2019-11-26 02:43:11,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:11,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 48 states and 63 transitions. [2019-11-26 02:43:11,468 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2019-11-26 02:43:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:43:11,478 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 48 states and 61 transitions. [2019-11-26 02:43:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2019-11-26 02:43:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 02:43:11,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:11,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 50 states and 64 transitions. [2019-11-26 02:43:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2019-11-26 02:43:11,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-26 02:43:11,860 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:12,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 63 states and 90 transitions. [2019-11-26 02:43:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2019-11-26 02:43:12,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 02:43:12,232 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:12,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:12,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 64 states and 91 transitions. [2019-11-26 02:43:12,354 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2019-11-26 02:43:12,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 02:43:12,356 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:13,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 79 states and 123 transitions. [2019-11-26 02:43:13,320 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 123 transitions. [2019-11-26 02:43:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-26 02:43:13,322 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:13,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 80 states and 124 transitions. [2019-11-26 02:43:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 124 transitions. [2019-11-26 02:43:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-26 02:43:13,430 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 81 states and 125 transitions. [2019-11-26 02:43:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 125 transitions. [2019-11-26 02:43:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:43:13,509 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:13,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 81 states and 124 transitions. [2019-11-26 02:43:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 124 transitions. [2019-11-26 02:43:13,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 02:43:13,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 85 states and 133 transitions. [2019-11-26 02:43:13,631 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 133 transitions. [2019-11-26 02:43:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-26 02:43:13,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:43:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:14,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 94 states and 153 transitions. [2019-11-26 02:43:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 153 transitions. [2019-11-26 02:43:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-26 02:43:14,220 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:43:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:14,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 98 states and 158 transitions. [2019-11-26 02:43:14,531 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 158 transitions. [2019-11-26 02:43:14,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:43:14,533 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:43:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 104 states and 171 transitions. [2019-11-26 02:43:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2019-11-26 02:43:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-26 02:43:14,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:14,949 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:43:14,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:14,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 102 states and 167 transitions. [2019-11-26 02:43:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 167 transitions. [2019-11-26 02:43:14,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-26 02:43:14,982 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-26 02:43:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 104 states and 168 transitions. [2019-11-26 02:43:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 168 transitions. [2019-11-26 02:43:15,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:43:15,214 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:15,614 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:43:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 119 states and 218 transitions. [2019-11-26 02:43:17,540 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 218 transitions. [2019-11-26 02:43:17,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-26 02:43:17,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:43:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:17,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 121 states and 223 transitions. [2019-11-26 02:43:17,969 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 223 transitions. [2019-11-26 02:43:17,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-26 02:43:17,978 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:43:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:19,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 123 states and 227 transitions. [2019-11-26 02:43:19,238 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 227 transitions. [2019-11-26 02:43:19,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-26 02:43:19,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-26 02:43:20,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:20,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 131 states and 260 transitions. [2019-11-26 02:43:20,738 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 260 transitions. [2019-11-26 02:43:20,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-26 02:43:20,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-26 02:43:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:21,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 133 states and 268 transitions. [2019-11-26 02:43:21,107 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 268 transitions. [2019-11-26 02:43:21,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-26 02:43:21,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:43:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:21,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 135 states and 272 transitions. [2019-11-26 02:43:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 272 transitions. [2019-11-26 02:43:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-26 02:43:21,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-26 02:43:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:23,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 145 states and 294 transitions. [2019-11-26 02:43:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 294 transitions. [2019-11-26 02:43:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-26 02:43:23,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-26 02:43:23,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 147 states and 299 transitions. [2019-11-26 02:43:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 299 transitions. [2019-11-26 02:43:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-26 02:43:23,672 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-26 02:43:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:23,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 148 states and 300 transitions. [2019-11-26 02:43:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 300 transitions. [2019-11-26 02:43:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-26 02:43:23,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-26 02:43:25,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 156 states and 321 transitions. [2019-11-26 02:43:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 321 transitions. [2019-11-26 02:43:25,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-26 02:43:25,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 02:43:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 158 states and 325 transitions. [2019-11-26 02:43:26,012 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 325 transitions. [2019-11-26 02:43:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-26 02:43:26,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-26 02:43:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:26,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 158 states and 324 transitions. [2019-11-26 02:43:26,072 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 324 transitions. [2019-11-26 02:43:26,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-26 02:43:26,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 02:43:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 159 states and 325 transitions. [2019-11-26 02:43:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 325 transitions. [2019-11-26 02:43:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-26 02:43:26,143 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:26,456 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 02:43:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 173 states and 348 transitions. [2019-11-26 02:43:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 348 transitions. [2019-11-26 02:43:29,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-26 02:43:29,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 02:43:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 175 states and 349 transitions. [2019-11-26 02:43:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 349 transitions. [2019-11-26 02:43:29,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-26 02:43:29,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-26 02:43:35,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:35,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 188 states and 380 transitions. [2019-11-26 02:43:35,985 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 380 transitions. [2019-11-26 02:43:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-26 02:43:35,987 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:36,441 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 31 iterations. [2019-11-26 02:43:36,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:43:36 ImpRootNode [2019-11-26 02:43:36,687 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:43:36,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:43:36,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:43:36,688 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:43:36,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:11" (3/4) ... [2019-11-26 02:43:36,690 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:43:36,797 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7c35c8a-796a-43a5-b771-4eab21a9ecb4/bin/ukojak/witness.graphml [2019-11-26 02:43:36,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:43:36,800 INFO L168 Benchmark]: Toolchain (without parser) took 27034.22 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 447.7 MB). Free memory was 944.7 MB in the beginning and 1.3 GB in the end (delta: -386.0 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:36,800 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:36,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:36,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:36,801 INFO L168 Benchmark]: Boogie Preprocessor took 31.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:36,802 INFO L168 Benchmark]: RCFGBuilder took 1014.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:36,802 INFO L168 Benchmark]: CodeCheck took 25282.55 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 303.6 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -312.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:36,803 INFO L168 Benchmark]: Witness Printer took 110.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:36,805 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Result: UNSAFE, OverallTime: 25.0s, OverallIterations: 31, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1325666132 SDtfs, 204058056 SDslu, -1558663014 SDs, 0 SdLazy, 1611221292 SolverSat, 919884702 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11787 GetRequests, 11407 SyntacticMatches, 46 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48300 ImplicationChecksByTransitivity, 20.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1108 NumberOfCodeBlocks, 1108 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1026 ConstructedInterpolants, 0 QuantifiedInterpolants, 101267 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 16 PerfectInterpolantSequences, 227/291 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: 764]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int retValue_acc ; [L907] int tmp ; [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] return (retValue_acc); [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L532] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE \read(systemActive) [L618] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L493] int retValue_acc ; [L496] COND FALSE !(waterLevel < 2) [L500] retValue_acc = 0 [L501] return (retValue_acc); [L739] tmp = isHighWaterSensorDry() [L741] COND FALSE !(\read(tmp)) [L744] tmp___0 = 1 [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) [L652] int tmp ; [L677] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] retValue_acc = isMethaneLevelCritical() [L683] return (retValue_acc); [L656] tmp = isMethaneAlarm() [L658] COND FALSE !(\read(tmp)) [L646] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L542] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L443] COND FALSE !(\read(methaneLevelCritical)) [L446] methaneLevelCritical = 1 [L542] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___2) [L755] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L589] COND TRUE \read(pumpRunning) [L419] COND TRUE waterLevel > 0 [L420] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE \read(systemActive) [L618] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] tmp = isMethaneLevelCritical() [L777] COND TRUE \read(tmp) [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); [L779] tmp___0 = isPumpRunning() [L781] COND TRUE \read(tmp___0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] __VERIFIER_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 535.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1014.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * CodeCheck took 25282.55 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 303.6 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -312.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 110.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...