./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt --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 daa9da8859207d10d864ef24e046b0be94d62d80 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 00:48:32,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:48:32,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:48:32,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:48:32,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:48:32,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:48:32,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:48:32,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:48:32,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:48:32,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:48:32,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:48:32,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:48:32,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:48:32,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:48:32,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:48:32,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:48:32,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:48:32,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:48:32,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:48:32,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:48:32,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:48:32,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:48:32,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:48:32,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:48:32,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:48:32,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:48:32,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:48:32,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:48:32,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:48:32,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:48:32,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:48:32,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:48:32,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:48:32,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:48:32,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:48:32,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:48:32,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:48:32,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:48:32,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:48:32,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:48:32,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:48:32,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:48:32,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:48:32,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:48:32,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:48:32,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:48:32,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:48:32,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:48:32,715 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:48:32,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:48:32,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:48:32,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:48:32,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:48:32,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:48:32,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:48:32,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:48:32,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:48:32,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:48:32,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:48:32,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:48:32,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:48:32,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:48:32,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:48:32,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:48:32,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:48:32,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:48:32,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:48:32,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:48:32,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:48:32,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:48:32,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:48:32,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:48:32,721 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_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa9da8859207d10d864ef24e046b0be94d62d80 [2021-10-13 00:48:32,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:48:33,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:48:33,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:48:33,031 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:48:33,032 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:48:33,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2021-10-13 00:48:33,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/data/a59a21461/8b65382adb9d41a7a769fbb801f08c2b/FLAG40fbd80c9 [2021-10-13 00:48:33,636 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:48:33,637 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2021-10-13 00:48:33,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/data/a59a21461/8b65382adb9d41a7a769fbb801f08c2b/FLAG40fbd80c9 [2021-10-13 00:48:34,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/data/a59a21461/8b65382adb9d41a7a769fbb801f08c2b [2021-10-13 00:48:34,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:48:34,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:48:34,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:48:34,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:48:34,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:48:34,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698d8bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34, skipping insertion in model container [2021-10-13 00:48:34,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:48:34,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:48:34,392 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_d82e2746-953d-4204-821f-2f7df82dd43f/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c[1281,1294] [2021-10-13 00:48:34,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:48:34,543 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:48:34,557 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_d82e2746-953d-4204-821f-2f7df82dd43f/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c[1281,1294] [2021-10-13 00:48:34,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:48:34,651 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:48:34,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34 WrapperNode [2021-10-13 00:48:34,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:48:34,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:48:34,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:48:34,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:48:34,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:48:34,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:48:34,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:48:34,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:48:34,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:48:34,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:48:34,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:48:34,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:48:34,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (1/1) ... [2021-10-13 00:48:34,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:48:34,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:48:34,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:48:34,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:48:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:48:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:48:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:48:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:48:35,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:48:35,800 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-10-13 00:48:35,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:35 BoogieIcfgContainer [2021-10-13 00:48:35,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:48:35,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:48:35,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:48:35,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:48:35,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:48:34" (1/3) ... [2021-10-13 00:48:35,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574adc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:48:35, skipping insertion in model container [2021-10-13 00:48:35,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:34" (2/3) ... [2021-10-13 00:48:35,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574adc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:48:35, skipping insertion in model container [2021-10-13 00:48:35,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:35" (3/3) ... [2021-10-13 00:48:35,815 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2021-10-13 00:48:35,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:48:35,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 00:48:35,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:48:35,878 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:48:35,878 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 00:48:35,894 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) [2021-10-13 00:48:35,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 00:48:35,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:48:35,899 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:35,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:48:35,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:35,904 INFO L82 PathProgramCache]: Analyzing trace with hash -688968604, now seen corresponding path program 1 times [2021-10-13 00:48:35,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:35,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143801955] [2021-10-13 00:48:35,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:35,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:48:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:48:36,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:48:36,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143801955] [2021-10-13 00:48:36,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143801955] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:48:36,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:48:36,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:48:36,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253865673] [2021-10-13 00:48:36,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:48:36,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:48:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:48:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:48:36,288 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) [2021-10-13 00:48:36,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:48:36,327 INFO L93 Difference]: Finished difference Result 144 states and 215 transitions. [2021-10-13 00:48:36,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:48:36,329 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 [2021-10-13 00:48:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:48:36,354 INFO L225 Difference]: With dead ends: 144 [2021-10-13 00:48:36,355 INFO L226 Difference]: Without dead ends: 71 [2021-10-13 00:48:36,358 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:48:36,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-13 00:48:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-13 00:48:36,407 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) [2021-10-13 00:48:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2021-10-13 00:48:36,413 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2021-10-13 00:48:36,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:48:36,414 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2021-10-13 00:48:36,414 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) [2021-10-13 00:48:36,415 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2021-10-13 00:48:36,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:48:36,417 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:48:36,417 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:36,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:48:36,418 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:48:36,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:36,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1599999357, now seen corresponding path program 1 times [2021-10-13 00:48:36,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:36,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934939466] [2021-10-13 00:48:36,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:36,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:48:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:48:36,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:48:36,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934939466] [2021-10-13 00:48:36,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934939466] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:48:36,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:48:36,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:48:36,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785137958] [2021-10-13 00:48:36,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:48:36,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:48:36,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:48:36,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:48:36,579 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) [2021-10-13 00:48:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:48:36,601 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2021-10-13 00:48:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:48:36,602 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 [2021-10-13 00:48:36,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:48:36,604 INFO L225 Difference]: With dead ends: 71 [2021-10-13 00:48:36,604 INFO L226 Difference]: Without dead ends: 33 [2021-10-13 00:48:36,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:48:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-13 00:48:36,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-13 00:48:36,613 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) [2021-10-13 00:48:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2021-10-13 00:48:36,615 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2021-10-13 00:48:36,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:48:36,616 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2021-10-13 00:48:36,617 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) [2021-10-13 00:48:36,618 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2021-10-13 00:48:36,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:48:36,620 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:48:36,620 INFO L512 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] [2021-10-13 00:48:36,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:48:36,621 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:48:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:36,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1180040056, now seen corresponding path program 1 times [2021-10-13 00:48:36,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:36,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377463632] [2021-10-13 00:48:36,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:36,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:48:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:48:36,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:48:36,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377463632] [2021-10-13 00:48:36,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377463632] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:48:36,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:48:36,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:48:36,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768445349] [2021-10-13 00:48:36,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:48:36,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:48:36,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:48:36,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:48:36,769 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand has 5 states, 5 states have (on average 4.8) 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) [2021-10-13 00:48:36,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:48:36,823 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2021-10-13 00:48:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:48:36,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) 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 [2021-10-13 00:48:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:48:36,824 INFO L225 Difference]: With dead ends: 60 [2021-10-13 00:48:36,824 INFO L226 Difference]: Without dead ends: 33 [2021-10-13 00:48:36,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:48:36,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-13 00:48:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-13 00:48:36,830 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) [2021-10-13 00:48:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2021-10-13 00:48:36,830 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2021-10-13 00:48:36,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:48:36,831 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2021-10-13 00:48:36,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) 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) [2021-10-13 00:48:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2021-10-13 00:48:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:48:36,832 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:48:36,832 INFO L512 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] [2021-10-13 00:48:36,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:48:36,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:48:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:36,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1819191868, now seen corresponding path program 1 times [2021-10-13 00:48:36,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:36,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594764031] [2021-10-13 00:48:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:36,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:48:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:48:36,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:48:36,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594764031] [2021-10-13 00:48:36,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594764031] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:48:36,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:48:36,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:48:36,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123152991] [2021-10-13 00:48:36,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:48:36,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:48:36,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:48:36,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:48:36,908 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) [2021-10-13 00:48:37,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:48:37,026 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2021-10-13 00:48:37,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:48:37,027 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 [2021-10-13 00:48:37,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:48:37,032 INFO L225 Difference]: With dead ends: 158 [2021-10-13 00:48:37,032 INFO L226 Difference]: Without dead ends: 131 [2021-10-13 00:48:37,034 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:48:37,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-13 00:48:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2021-10-13 00:48:37,056 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) [2021-10-13 00:48:37,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-10-13 00:48:37,057 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2021-10-13 00:48:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:48:37,057 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-10-13 00:48:37,058 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) [2021-10-13 00:48:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-10-13 00:48:37,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:48:37,059 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:48:37,060 INFO L512 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] [2021-10-13 00:48:37,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:48:37,061 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:48:37,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:37,061 INFO L82 PathProgramCache]: Analyzing trace with hash 516466438, now seen corresponding path program 1 times [2021-10-13 00:48:37,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:37,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636912382] [2021-10-13 00:48:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:37,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:37,167 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:48:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:37,262 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:48:37,262 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:48:37,263 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:48:37,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:48:37,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:48:37,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:48:37,271 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:48:37,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:48:37 BoogieIcfgContainer [2021-10-13 00:48:37,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:48:37,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:48:37,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:48:37,351 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:48:37,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:35" (3/4) ... [2021-10-13 00:48:37,354 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 00:48:37,454 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:48:37,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:48:37,456 INFO L168 Benchmark]: Toolchain (without parser) took 3377.02 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.3 MB in the beginning and 51.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:48:37,457 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:48:37,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.51 ms. Allocated memory is still 92.3 MB. Free memory was 58.1 MB in the beginning and 60.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:48:37,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.92 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 57.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:48:37,460 INFO L168 Benchmark]: Boogie Preprocessor took 68.70 ms. Allocated memory is still 92.3 MB. Free memory was 57.6 MB in the beginning and 55.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:48:37,461 INFO L168 Benchmark]: RCFGBuilder took 1012.26 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 55.5 MB in the beginning and 69.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:48:37,461 INFO L168 Benchmark]: TraceAbstraction took 1546.49 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 62.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:48:37,461 INFO L168 Benchmark]: Witness Printer took 103.44 ms. Allocated memory is still 111.1 MB. Free memory was 62.3 MB in the beginning and 51.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:48:37,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 572.51 ms. Allocated memory is still 92.3 MB. Free memory was 58.1 MB in the beginning and 60.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.92 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 57.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.70 ms. Allocated memory is still 92.3 MB. Free memory was 57.6 MB in the beginning and 55.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1012.26 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 55.5 MB in the beginning and 69.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1546.49 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 62.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Witness Printer took 103.44 ms. Allocated memory is still 111.1 MB. Free memory was 62.3 MB in the beginning and 51.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L391] int cleanupTimeShifts = 4; [L656] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] int retValue_acc ; [L465] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L471] tmp = valid_product() [L473] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L244] int splverifierCounter ; [L245] int tmp ; [L246] int tmp___0 ; [L247] int tmp___1 ; [L248] int tmp___2 ; [L251] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L253] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L255] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L261] tmp = __VERIFIER_nondet_int() [L263] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] tmp___0 = __VERIFIER_nondet_int() [L273] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L281] tmp___2 = __VERIFIER_nondet_int() [L283] COND TRUE \read(tmp___2) [L235] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] COND TRUE \read(systemActive) [L135] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L350] int retValue_acc ; [L353] retValue_acc = methaneLevelCritical [L354] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L860] tmp = isMethaneLevelCritical() [L862] COND FALSE !(\read(tmp)) [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] tmp___0 = getWaterLevel() [L868] COND TRUE tmp___0 == 2 [L187] int retValue_acc ; [L190] retValue_acc = pumpRunning [L191] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L870] tmp___1 = isPumpRunning() [L872] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L46] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 46]: 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: 46]: 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: 1399.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 15.2ms, AutomataDifference: 308.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 260 SDtfs, 334 SDslu, 177 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 71.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 66.5ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 77.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 40.7ms SsaConstructionTime, 340.3ms SatisfiabilityAnalysisTime, 329.1ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 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! [2021-10-13 00:48:37,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82e2746-953d-4204-821f-2f7df82dd43f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...