./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7cd784867b5981272ba60caba7961cbaf680a952b35b095dbec7935be0f5966 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:06:30,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:06:30,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:06:30,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:06:30,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:06:30,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:06:30,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:06:30,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:06:30,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:06:30,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:06:30,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:06:30,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:06:30,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:06:30,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:06:30,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:06:30,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:06:30,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:06:30,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:06:30,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:06:30,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:06:30,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:06:30,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:06:30,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:06:30,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:06:30,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:06:30,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:06:30,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:06:30,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:06:30,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:06:30,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:06:30,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:06:30,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:06:30,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:06:30,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:06:30,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:06:30,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:06:30,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:06:30,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:06:30,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:06:30,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:06:30,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:06:30,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:06:30,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:06:30,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:06:30,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:06:30,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:06:30,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:06:30,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:06:30,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:06:30,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:06:30,749 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:06:30,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:06:30,750 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:06:30,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:06:30,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:06:30,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:06:30,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:06:30,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:06:30,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:06:30,751 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:06:30,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:06:30,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:06:30,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:06:30,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:06:30,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:06:30,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:06:30,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:06:30,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:06:30,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:06:30,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:06:30,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:06:30,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:06:30,752 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:06:30,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:06:30,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:06:30,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:06:30,753 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7cd784867b5981272ba60caba7961cbaf680a952b35b095dbec7935be0f5966 [2021-12-17 15:06:30,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:06:30,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:06:30,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:06:30,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:06:30,971 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:06:30,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2021-12-17 15:06:31,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5998684/d3012ae5966141e8ba699f6814e14307/FLAG8095db00e [2021-12-17 15:06:31,379 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:06:31,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2021-12-17 15:06:31,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5998684/d3012ae5966141e8ba699f6814e14307/FLAG8095db00e [2021-12-17 15:06:31,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5998684/d3012ae5966141e8ba699f6814e14307 [2021-12-17 15:06:31,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:06:31,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:06:31,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:06:31,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:06:31,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:06:31,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:06:31" (1/1) ... [2021-12-17 15:06:31,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7d0510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:31, skipping insertion in model container [2021-12-17 15:06:31,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:06:31" (1/1) ... [2021-12-17 15:06:31,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:06:31,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:06:31,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c[1605,1618] [2021-12-17 15:06:32,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:06:32,039 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:06:32,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c[1605,1618] [2021-12-17 15:06:32,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:06:32,088 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:06:32,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32 WrapperNode [2021-12-17 15:06:32,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:06:32,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:06:32,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:06:32,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:06:32,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,131 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 219 [2021-12-17 15:06:32,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:06:32,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:06:32,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:06:32,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:06:32,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:06:32,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:06:32,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:06:32,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:06:32,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (1/1) ... [2021-12-17 15:06:32,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:06:32,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:06:32,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 15:06:32,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 15:06:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:06:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:06:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:06:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:06:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:06:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:06:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:06:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:06:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:06:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:06:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:06:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-17 15:06:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-17 15:06:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:06:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:06:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:06:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:06:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:06:32,288 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:06:32,290 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:06:32,469 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:06:32,484 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:06:32,484 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:06:32,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:06:32 BoogieIcfgContainer [2021-12-17 15:06:32,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:06:32,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:06:32,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:06:32,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:06:32,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:06:31" (1/3) ... [2021-12-17 15:06:32,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6458b1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:06:32, skipping insertion in model container [2021-12-17 15:06:32,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:32" (2/3) ... [2021-12-17 15:06:32,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6458b1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:06:32, skipping insertion in model container [2021-12-17 15:06:32,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:06:32" (3/3) ... [2021-12-17 15:06:32,495 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product20.cil.c [2021-12-17 15:06:32,499 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:06:32,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:06:32,528 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:06:32,533 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:06:32,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:06:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 68 states have internal predecessors, (84), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-17 15:06:32,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-17 15:06:32,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:32,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:32,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:32,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:32,558 INFO L85 PathProgramCache]: Analyzing trace with hash 253223704, now seen corresponding path program 1 times [2021-12-17 15:06:32,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:32,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281276878] [2021-12-17 15:06:32,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:32,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:32,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:06:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:06:32,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:32,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281276878] [2021-12-17 15:06:32,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281276878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:32,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:32,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:06:32,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328422536] [2021-12-17 15:06:32,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:32,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:06:32,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:32,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:06:32,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:06:32,811 INFO L87 Difference]: Start difference. First operand has 81 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 68 states have internal predecessors, (84), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:32,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:32,845 INFO L93 Difference]: Finished difference Result 154 states and 207 transitions. [2021-12-17 15:06:32,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:06:32,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-17 15:06:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:32,855 INFO L225 Difference]: With dead ends: 154 [2021-12-17 15:06:32,855 INFO L226 Difference]: Without dead ends: 72 [2021-12-17 15:06:32,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:06:32,862 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:32,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-12-17 15:06:32,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-12-17 15:06:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 60 states have internal predecessors, (70), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-17 15:06:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2021-12-17 15:06:32,904 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 23 [2021-12-17 15:06:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:32,905 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2021-12-17 15:06:32,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2021-12-17 15:06:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 15:06:32,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:32,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:32,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:06:32,909 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:32,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:32,910 INFO L85 PathProgramCache]: Analyzing trace with hash 981629421, now seen corresponding path program 1 times [2021-12-17 15:06:32,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:32,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875284442] [2021-12-17 15:06:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:32,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:32,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:06:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:06:32,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:32,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875284442] [2021-12-17 15:06:32,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875284442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:32,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:32,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:06:32,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408120449] [2021-12-17 15:06:32,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:32,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:06:32,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:32,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:06:32,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:06:32,990 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:33,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:33,006 INFO L93 Difference]: Finished difference Result 105 states and 131 transitions. [2021-12-17 15:06:33,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:06:33,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-17 15:06:33,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:33,011 INFO L225 Difference]: With dead ends: 105 [2021-12-17 15:06:33,012 INFO L226 Difference]: Without dead ends: 63 [2021-12-17 15:06:33,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:06:33,016 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 17 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:33,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:33,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-17 15:06:33,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-17 15:06:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.3125) internal successors, (63), 54 states have internal predecessors, (63), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 15:06:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2021-12-17 15:06:33,034 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 24 [2021-12-17 15:06:33,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:33,034 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2021-12-17 15:06:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2021-12-17 15:06:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 15:06:33,037 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:33,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:33,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:06:33,037 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:33,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash 826577867, now seen corresponding path program 1 times [2021-12-17 15:06:33,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:33,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38192922] [2021-12-17 15:06:33,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:33,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:06:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:06:33,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:33,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38192922] [2021-12-17 15:06:33,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38192922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:33,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:33,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:06:33,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691979967] [2021-12-17 15:06:33,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:33,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:06:33,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:33,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:06:33,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:06:33,092 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:33,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:33,125 INFO L93 Difference]: Finished difference Result 173 states and 222 transitions. [2021-12-17 15:06:33,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:06:33,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-17 15:06:33,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:33,129 INFO L225 Difference]: With dead ends: 173 [2021-12-17 15:06:33,129 INFO L226 Difference]: Without dead ends: 117 [2021-12-17 15:06:33,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:06:33,132 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 71 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:33,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:33,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-17 15:06:33,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2021-12-17 15:06:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 96 states have internal predecessors, (114), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-17 15:06:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2021-12-17 15:06:33,154 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 29 [2021-12-17 15:06:33,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:33,154 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2021-12-17 15:06:33,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:33,155 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2021-12-17 15:06:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-17 15:06:33,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:33,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:33,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:06:33,156 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:33,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash -166090445, now seen corresponding path program 1 times [2021-12-17 15:06:33,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:33,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374686926] [2021-12-17 15:06:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:33,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:06:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:06:33,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:33,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374686926] [2021-12-17 15:06:33,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374686926] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:33,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:33,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:06:33,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254123025] [2021-12-17 15:06:33,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:33,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:06:33,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:33,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:06:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:06:33,228 INFO L87 Difference]: Start difference. First operand 114 states and 146 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:33,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:33,316 INFO L93 Difference]: Finished difference Result 328 states and 429 transitions. [2021-12-17 15:06:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:06:33,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-17 15:06:33,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:33,318 INFO L225 Difference]: With dead ends: 328 [2021-12-17 15:06:33,318 INFO L226 Difference]: Without dead ends: 221 [2021-12-17 15:06:33,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:06:33,320 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 51 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:33,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 380 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-12-17 15:06:33,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 215. [2021-12-17 15:06:33,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 158 states have (on average 1.3291139240506329) internal successors, (210), 179 states have internal predecessors, (210), 32 states have call successors, (32), 24 states have call predecessors, (32), 24 states have return successors, (34), 22 states have call predecessors, (34), 32 states have call successors, (34) [2021-12-17 15:06:33,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 276 transitions. [2021-12-17 15:06:33,339 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 276 transitions. Word has length 32 [2021-12-17 15:06:33,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:33,340 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 276 transitions. [2021-12-17 15:06:33,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:06:33,340 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 276 transitions. [2021-12-17 15:06:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-17 15:06:33,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:33,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:33,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:06:33,342 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:33,342 INFO L85 PathProgramCache]: Analyzing trace with hash 277937943, now seen corresponding path program 1 times [2021-12-17 15:06:33,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:33,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240929660] [2021-12-17 15:06:33,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:33,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:06:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-17 15:06:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:06:33,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:33,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240929660] [2021-12-17 15:06:33,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240929660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:33,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:33,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:06:33,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497459227] [2021-12-17 15:06:33,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:33,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:06:33,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:33,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:06:33,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:06:33,401 INFO L87 Difference]: Start difference. First operand 215 states and 276 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:06:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:33,508 INFO L93 Difference]: Finished difference Result 375 states and 482 transitions. [2021-12-17 15:06:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 15:06:33,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2021-12-17 15:06:33,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:33,509 INFO L225 Difference]: With dead ends: 375 [2021-12-17 15:06:33,510 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:06:33,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:06:33,511 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 49 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:33,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 138 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:06:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:06:33,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:06:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:06:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:06:33,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-12-17 15:06:33,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:33,513 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:06:33,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:06:33,513 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:06:33,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:06:33,515 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:06:33,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:06:33,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:06:33,826 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 310 317) the Hoare annotation is: true [2021-12-17 15:06:33,827 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 310 317) no Hoare annotation was computed. [2021-12-17 15:06:33,827 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 310 317) no Hoare annotation was computed. [2021-12-17 15:06:33,827 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 269 275) no Hoare annotation was computed. [2021-12-17 15:06:33,827 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 269 275) the Hoare annotation is: true [2021-12-17 15:06:33,827 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 444 455) no Hoare annotation was computed. [2021-12-17 15:06:33,827 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 444 455) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|)) [2021-12-17 15:06:33,827 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 444 455) no Hoare annotation was computed. [2021-12-17 15:06:33,827 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 456 464) the Hoare annotation is: true [2021-12-17 15:06:33,828 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 456 464) no Hoare annotation was computed. [2021-12-17 15:06:33,828 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 456 464) no Hoare annotation was computed. [2021-12-17 15:06:33,828 INFO L854 garLoopResultBuilder]: At program point L287(line 287) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-17 15:06:33,828 INFO L854 garLoopResultBuilder]: At program point L502(lines 497 505) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-17 15:06:33,828 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 428) no Hoare annotation was computed. [2021-12-17 15:06:33,828 INFO L854 garLoopResultBuilder]: At program point L296(line 296) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,828 INFO L854 garLoopResultBuilder]: At program point L296-1(lines 277 301) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,828 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 245 268) no Hoare annotation was computed. [2021-12-17 15:06:33,829 INFO L854 garLoopResultBuilder]: At program point L424-2(lines 420 431) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-17 15:06:33,829 INFO L858 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2021-12-17 15:06:33,829 INFO L858 garLoopResultBuilder]: For program point L383-2(lines 383 387) no Hoare annotation was computed. [2021-12-17 15:06:33,829 INFO L858 garLoopResultBuilder]: For program point L920(lines 920 926) no Hoare annotation was computed. [2021-12-17 15:06:33,829 INFO L858 garLoopResultBuilder]: For program point L916(lines 916 929) no Hoare annotation was computed. [2021-12-17 15:06:33,829 INFO L854 garLoopResultBuilder]: At program point L916-1(lines 908 932) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= |timeShift___utac_acc__Specification1_spec__1_~tmp~7#1| 0) .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (= ~pumpRunning~0 0)))) [2021-12-17 15:06:33,829 INFO L854 garLoopResultBuilder]: At program point L334(lines 329 337) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= ~pumpRunning~0 0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2021-12-17 15:06:33,829 INFO L858 garLoopResultBuilder]: For program point L256-1(lines 256 262) no Hoare annotation was computed. [2021-12-17 15:06:33,830 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 293) no Hoare annotation was computed. [2021-12-17 15:06:33,830 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 298) no Hoare annotation was computed. [2021-12-17 15:06:33,830 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-12-17 15:06:33,830 INFO L854 garLoopResultBuilder]: At program point L389(lines 374 392) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-17 15:06:33,830 INFO L858 garLoopResultBuilder]: For program point L249-1(lines 248 267) no Hoare annotation was computed. [2021-12-17 15:06:33,830 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-17 15:06:33,830 INFO L854 garLoopResultBuilder]: At program point L914(line 914) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,830 INFO L858 garLoopResultBuilder]: For program point L914-1(line 914) no Hoare annotation was computed. [2021-12-17 15:06:33,830 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 245 268) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,831 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 245 268) no Hoare annotation was computed. [2021-12-17 15:06:33,831 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-12-17 15:06:33,831 INFO L854 garLoopResultBuilder]: At program point L291(line 291) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-17 15:06:33,831 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 61 90) no Hoare annotation was computed. [2021-12-17 15:06:33,831 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 61 90) the Hoare annotation is: true [2021-12-17 15:06:33,831 INFO L861 garLoopResultBuilder]: At program point L86(lines 61 90) the Hoare annotation is: true [2021-12-17 15:06:33,831 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-17 15:06:33,831 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2021-12-17 15:06:33,832 INFO L861 garLoopResultBuilder]: At program point L75-1(lines 75 79) the Hoare annotation is: true [2021-12-17 15:06:33,832 INFO L858 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2021-12-17 15:06:33,832 INFO L861 garLoopResultBuilder]: At program point L71-2(lines 71 85) the Hoare annotation is: true [2021-12-17 15:06:33,832 INFO L861 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2021-12-17 15:06:33,832 INFO L858 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2021-12-17 15:06:33,832 INFO L854 garLoopResultBuilder]: At program point L225(lines 174 226) the Hoare annotation is: false [2021-12-17 15:06:33,832 INFO L854 garLoopResultBuilder]: At program point L122(lines 118 124) the Hoare annotation is: (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,832 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 219) no Hoare annotation was computed. [2021-12-17 15:06:33,832 INFO L854 garLoopResultBuilder]: At program point L213-2(lines 205 220) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,833 INFO L858 garLoopResultBuilder]: For program point L176(lines 175 224) no Hoare annotation was computed. [2021-12-17 15:06:33,833 INFO L854 garLoopResultBuilder]: At program point L399(line 399) the Hoare annotation is: false [2021-12-17 15:06:33,833 INFO L858 garLoopResultBuilder]: For program point L205(lines 205 220) no Hoare annotation was computed. [2021-12-17 15:06:33,833 INFO L854 garLoopResultBuilder]: At program point L903(lines 898 906) the Hoare annotation is: (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,833 INFO L854 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,833 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:06:33,833 INFO L854 garLoopResultBuilder]: At program point L895(lines 891 897) the Hoare annotation is: (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,833 INFO L854 garLoopResultBuilder]: At program point L222(lines 175 224) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,834 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:06:33,834 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:06:33,834 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 191) no Hoare annotation was computed. [2021-12-17 15:06:33,834 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 185 191) no Hoare annotation was computed. [2021-12-17 15:06:33,834 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 181) no Hoare annotation was computed. [2021-12-17 15:06:33,834 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:06:33,834 INFO L854 garLoopResultBuilder]: At program point L413(lines 408 415) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,834 INFO L854 garLoopResultBuilder]: At program point L888(lines 884 890) the Hoare annotation is: (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,834 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 156) no Hoare annotation was computed. [2021-12-17 15:06:33,835 INFO L854 garLoopResultBuilder]: At program point L405(lines 393 407) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,835 INFO L858 garLoopResultBuilder]: For program point L149-2(lines 149 156) no Hoare annotation was computed. [2021-12-17 15:06:33,835 INFO L858 garLoopResultBuilder]: For program point L397(lines 397 403) no Hoare annotation was computed. [2021-12-17 15:06:33,835 INFO L858 garLoopResultBuilder]: For program point L397-1(lines 397 403) no Hoare annotation was computed. [2021-12-17 15:06:33,835 INFO L861 garLoopResultBuilder]: At program point L133(lines 126 135) the Hoare annotation is: true [2021-12-17 15:06:33,835 INFO L861 garLoopResultBuilder]: At program point L228(lines 165 232) the Hoare annotation is: true [2021-12-17 15:06:33,835 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 201) no Hoare annotation was computed. [2021-12-17 15:06:33,835 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 195 201) no Hoare annotation was computed. [2021-12-17 15:06:33,835 INFO L861 garLoopResultBuilder]: At program point L158(lines 139 161) the Hoare annotation is: true [2021-12-17 15:06:33,836 INFO L854 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-17 15:06:33,836 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 432 443) no Hoare annotation was computed. [2021-12-17 15:06:33,836 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 432 443) the Hoare annotation is: true [2021-12-17 15:06:33,836 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 432 443) no Hoare annotation was computed. [2021-12-17 15:06:33,838 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-17 15:06:33,839 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:06:33,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:06:33 BoogieIcfgContainer [2021-12-17 15:06:33,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:06:33,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:06:33,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:06:33,850 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:06:33,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:06:32" (3/4) ... [2021-12-17 15:06:33,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:06:33,856 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-17 15:06:33,856 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:06:33,856 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:06:33,856 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:06:33,856 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:06:33,857 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:06:33,857 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:06:33,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2021-12-17 15:06:33,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:06:33,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:06:33,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:06:33,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:06:33,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:06:33,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:06:33,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-17 15:06:33,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2021-12-17 15:06:33,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) [2021-12-17 15:06:33,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0 && pumpRunning == 0) || !(\old(pumpRunning) == 0)) && (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) [2021-12-17 15:06:33,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-17 15:06:33,878 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-17 15:06:33,878 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-17 15:06:33,892 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:06:33,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:06:33,893 INFO L158 Benchmark]: Toolchain (without parser) took 2136.71ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 71.0MB in the beginning and 73.5MB in the end (delta: -2.5MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2021-12-17 15:06:33,893 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:06:33,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.92ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 70.8MB in the beginning and 105.9MB in the end (delta: -35.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 15:06:33,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 138.4MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:06:33,894 INFO L158 Benchmark]: Boogie Preprocessor took 18.32ms. Allocated memory is still 138.4MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:06:33,894 INFO L158 Benchmark]: RCFGBuilder took 332.95ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 86.9MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 15:06:33,895 INFO L158 Benchmark]: TraceAbstraction took 1362.13ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 79.6MB in the end (delta: 6.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-12-17 15:06:33,895 INFO L158 Benchmark]: Witness Printer took 42.70ms. Allocated memory is still 138.4MB. Free memory was 79.6MB in the beginning and 73.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 15:06:33,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.92ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 70.8MB in the beginning and 105.9MB in the end (delta: -35.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 138.4MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.32ms. Allocated memory is still 138.4MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.95ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 86.9MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1362.13ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 79.6MB in the end (delta: 6.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 42.70ms. Allocated memory is still 138.4MB. Free memory was 79.6MB in the beginning and 73.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 918 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 509 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 409 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 293 PreInvPairs, 337 NumberOfFragments, 206 HoareAnnotationTreeSize, 293 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 1055 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 898]: Loop Invariant Derived loop invariant: (methaneLevelCritical == 0 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: (methaneLevelCritical == 0 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: ((\result == 0 && pumpRunning == 0) || !(\old(pumpRunning) == 0)) && (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: ((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (splverifierCounter == 0 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: (methaneLevelCritical == 0 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 497]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 393]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (methaneLevelCritical == 0 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 RESULT: Ultimate proved your program to be correct! [2021-12-17 15:06:33,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE