./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg --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 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-b2eff8b [2021-10-28 08:38:11,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:38:11,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:38:11,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:38:11,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:38:11,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:38:11,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:38:11,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:38:11,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:38:11,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:38:11,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:38:11,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:38:11,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:38:11,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:38:11,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:38:11,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:38:11,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:38:11,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:38:11,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:38:11,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:38:11,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:38:11,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:38:11,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:38:11,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:38:11,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:38:11,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:38:11,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:38:11,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:38:11,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:38:11,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:38:11,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:38:11,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:38:11,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:38:11,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:38:11,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:38:11,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:38:11,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:38:11,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:38:11,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:38:11,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:38:11,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:38:11,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:38:11,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:38:11,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:38:11,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:38:11,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:38:11,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:38:11,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:38:11,799 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:38:11,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:38:11,800 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:38:11,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:38:11,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:38:11,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:38:11,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:38:11,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:38:11,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:38:11,802 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:38:11,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:38:11,802 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:38:11,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:38:11,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:38:11,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:38:11,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:38:11,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:38:11,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:38:11,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:38:11,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:38:11,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:38:11,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:38:11,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:38:11,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:38:11,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:38:11,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:38:11,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc [2021-10-28 08:38:12,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:38:12,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:38:12,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:38:12,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:38:12,156 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:38:12,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-28 08:38:12,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/data/a4f232029/b817ce4ce1dd48febe4aee3493743f3f/FLAG2ded7e68f [2021-10-28 08:38:12,874 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:38:12,875 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-28 08:38:12,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/data/a4f232029/b817ce4ce1dd48febe4aee3493743f3f/FLAG2ded7e68f [2021-10-28 08:38:13,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/data/a4f232029/b817ce4ce1dd48febe4aee3493743f3f [2021-10-28 08:38:13,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:38:13,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:38:13,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:13,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:38:13,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:38:13,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7730831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13, skipping insertion in model container [2021-10-28 08:38:13,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:38:13,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:38:13,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-28 08:38:13,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:13,641 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:38:13,668 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-28 08:38:13,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:13,817 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:38:13,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13 WrapperNode [2021-10-28 08:38:13,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:13,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:13,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:38:13,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:38:13,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:13,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:38:13,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:38:13,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:38:13,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:38:13,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:38:13,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:38:13,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:38:13,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (1/1) ... [2021-10-28 08:38:13,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:38:14,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:14,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:14,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:38:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:38:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:38:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:38:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:38:15,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:38:15,169 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-28 08:38:15,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:15 BoogieIcfgContainer [2021-10-28 08:38:15,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:38:15,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:38:15,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:38:15,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:38:15,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:38:13" (1/3) ... [2021-10-28 08:38:15,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b796133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:38:15, skipping insertion in model container [2021-10-28 08:38:15,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:13" (2/3) ... [2021-10-28 08:38:15,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b796133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:38:15, skipping insertion in model container [2021-10-28 08:38:15,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:15" (3/3) ... [2021-10-28 08:38:15,183 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2021-10-28 08:38:15,190 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:38:15,190 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 08:38:15,245 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:38:15,252 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 [2021-10-28 08:38:15,252 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 08:38:15,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 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) [2021-10-28 08:38:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:38:15,277 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:15,277 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:15,278 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:38:15,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:15,291 INFO L85 PathProgramCache]: Analyzing trace with hash 452053251, now seen corresponding path program 1 times [2021-10-28 08:38:15,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:15,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757413235] [2021-10-28 08:38:15,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:15,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:15,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:15,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:15,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757413235] [2021-10-28 08:38:15,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757413235] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:15,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:15,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:38:15,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969038950] [2021-10-28 08:38:15,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:38:15,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:15,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:38:15,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:38:15,613 INFO L87 Difference]: Start difference. First operand has 75 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 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) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 08:38:15,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:15,643 INFO L93 Difference]: Finished difference Result 144 states and 215 transitions. [2021-10-28 08:38:15,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:38:15,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) Word has length 18 [2021-10-28 08:38:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:15,656 INFO L225 Difference]: With dead ends: 144 [2021-10-28 08:38:15,656 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 08:38:15,659 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:38:15,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 08:38:15,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-28 08:38:15,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.4558823529411764) internal successors, (99), 70 states have internal predecessors, (99), 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) [2021-10-28 08:38:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2021-10-28 08:38:15,703 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2021-10-28 08:38:15,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:15,704 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2021-10-28 08:38:15,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 08:38:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2021-10-28 08:38:15,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 08:38:15,706 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:15,706 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:15,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:38:15,707 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:38:15,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:15,708 INFO L85 PathProgramCache]: Analyzing trace with hash -458977502, now seen corresponding path program 1 times [2021-10-28 08:38:15,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:15,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073336628] [2021-10-28 08:38:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:15,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:15,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:15,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073336628] [2021-10-28 08:38:15,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073336628] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:15,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:15,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:38:15,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683195269] [2021-10-28 08:38:15,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:38:15,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:15,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:38:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:15,860 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 08:38:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:15,888 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2021-10-28 08:38:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:38:15,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) Word has length 19 [2021-10-28 08:38:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:15,890 INFO L225 Difference]: With dead ends: 71 [2021-10-28 08:38:15,890 INFO L226 Difference]: Without dead ends: 33 [2021-10-28 08:38:15,891 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:15,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-28 08:38:15,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-28 08:38:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.4375) internal successors, (46), 32 states have internal predecessors, (46), 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) [2021-10-28 08:38:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2021-10-28 08:38:15,898 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2021-10-28 08:38:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:15,898 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2021-10-28 08:38:15,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 08:38:15,899 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2021-10-28 08:38:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 08:38:15,900 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:15,900 INFO L513 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] [2021-10-28 08:38:15,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:38:15,901 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:38:15,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:15,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1835969560, now seen corresponding path program 1 times [2021-10-28 08:38:15,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:15,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747714376] [2021-10-28 08:38:15,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:15,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:16,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:16,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747714376] [2021-10-28 08:38:16,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747714376] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:16,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:16,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:16,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132828907] [2021-10-28 08:38:16,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:38:16,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:16,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:16,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:16,089 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-28 08:38:16,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:16,282 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2021-10-28 08:38:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:16,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) Word has length 24 [2021-10-28 08:38:16,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:16,284 INFO L225 Difference]: With dead ends: 60 [2021-10-28 08:38:16,285 INFO L226 Difference]: Without dead ends: 33 [2021-10-28 08:38:16,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:16,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-28 08:38:16,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-28 08:38:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.40625) internal successors, (45), 32 states have internal predecessors, (45), 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) [2021-10-28 08:38:16,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2021-10-28 08:38:16,293 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2021-10-28 08:38:16,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:16,294 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2021-10-28 08:38:16,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-28 08:38:16,294 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2021-10-28 08:38:16,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 08:38:16,296 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:16,296 INFO L513 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] [2021-10-28 08:38:16,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:38:16,297 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:38:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash -678170013, now seen corresponding path program 1 times [2021-10-28 08:38:16,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:16,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306193373] [2021-10-28 08:38:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:16,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:16,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:16,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306193373] [2021-10-28 08:38:16,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306193373] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:16,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:16,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:38:16,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753187474] [2021-10-28 08:38:16,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:16,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:16,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:16,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:16,408 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 08:38:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:16,582 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2021-10-28 08:38:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:38:16,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) Word has length 25 [2021-10-28 08:38:16,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:16,592 INFO L225 Difference]: With dead ends: 158 [2021-10-28 08:38:16,592 INFO L226 Difference]: Without dead ends: 131 [2021-10-28 08:38:16,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-28 08:38:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2021-10-28 08:38:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.4) internal successors, (77), 55 states have internal predecessors, (77), 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) [2021-10-28 08:38:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-10-28 08:38:16,626 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2021-10-28 08:38:16,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:16,627 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-10-28 08:38:16,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 08:38:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-10-28 08:38:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 08:38:16,629 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:16,629 INFO L513 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] [2021-10-28 08:38:16,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:38:16,630 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:38:16,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1657488293, now seen corresponding path program 1 times [2021-10-28 08:38:16,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:16,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546430260] [2021-10-28 08:38:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:16,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:16,775 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:16,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:16,951 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:38:16,952 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:38:16,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:38:16,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:38:16,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:38:16,960 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-28 08:38:16,964 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:38:17,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:38:17 BoogieIcfgContainer [2021-10-28 08:38:17,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:38:17,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:38:17,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:38:17,116 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:38:17,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:15" (3/4) ... [2021-10-28 08:38:17,119 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:38:17,211 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:38:17,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:38:17,213 INFO L168 Benchmark]: Toolchain (without parser) took 4011.87 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 73.5 MB in the beginning and 95.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:17,214 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 83.0 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:38:17,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.09 ms. Allocated memory is still 109.1 MB. Free memory was 73.3 MB in the beginning and 77.5 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:17,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.50 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 74.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:17,216 INFO L168 Benchmark]: Boogie Preprocessor took 60.52 ms. Allocated memory is still 109.1 MB. Free memory was 74.4 MB in the beginning and 72.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:17,216 INFO L168 Benchmark]: RCFGBuilder took 1197.50 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 81.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:17,217 INFO L168 Benchmark]: TraceAbstraction took 1940.53 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 80.4 MB in the beginning and 107.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:17,217 INFO L168 Benchmark]: Witness Printer took 95.47 ms. Allocated memory is still 134.2 MB. Free memory was 106.2 MB in the beginning and 95.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:17,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 83.0 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 617.09 ms. Allocated memory is still 109.1 MB. Free memory was 73.3 MB in the beginning and 77.5 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.50 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 74.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.52 ms. Allocated memory is still 109.1 MB. Free memory was 74.4 MB in the beginning and 72.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1197.50 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 81.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1940.53 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 80.4 MB in the beginning and 107.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. * Witness Printer took 95.47 ms. Allocated memory is still 134.2 MB. Free memory was 106.2 MB in the beginning and 95.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 178]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L183] int cleanupTimeShifts = 4; [L285] int pumpRunning = 0; [L286] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; [L260] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L482] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L488] tmp = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] COND TRUE waterLevel < 2 [L75] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] COND TRUE \read(systemActive) [L322] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L437] int tmp ; [L438] int tmp___0 ; [L439] int tmp___1 ; [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] tmp = isMethaneLevelCritical() [L445] COND FALSE !(\read(tmp)) [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___0 = getWaterLevel() [L451] COND TRUE tmp___0 == 2 [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L453] tmp___1 = isPumpRunning() [L455] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L178] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 178]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 75 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 368 SDslu, 175 SDs, 0 SdLazy, 41 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:38:17,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cebdaa0-a77e-4f25-a610-5c0995648aa2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...