./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX --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 2165aefdca75c2370f155996346c5c4ea8ed352d96946243b70bd7ef162ab29f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:18:58,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:18:58,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:18:58,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:18:58,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:18:58,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:18:58,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:18:58,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:18:58,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:18:58,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:18:58,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:18:58,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:18:58,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:18:58,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:18:58,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:18:58,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:18:58,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:18:58,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:18:58,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:18:58,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:18:58,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:18:58,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:18:58,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:18:58,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:18:58,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:18:58,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:18:58,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:18:58,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:18:58,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:18:58,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:18:58,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:18:58,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:18:58,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:18:58,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:18:58,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:18:58,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:18:58,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:18:58,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:18:58,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:18:58,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:18:58,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:18:58,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:18:58,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:18:58,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:18:58,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:18:58,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:18:58,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:18:58,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:18:58,651 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:18:58,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:18:58,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:18:58,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:18:58,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:18:58,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:18:58,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:18:58,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:18:58,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:18:58,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:18:58,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:18:58,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:18:58,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:18:58,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:18:58,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:18:58,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:18:58,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:18:58,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:18:58,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:18:58,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:18:58,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:18:58,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:18:58,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:18:58,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:18:58,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:18:58,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:18:58,661 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_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2165aefdca75c2370f155996346c5c4ea8ed352d96946243b70bd7ef162ab29f [2021-11-09 09:18:58,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:18:58,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:18:59,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:18:59,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:18:59,006 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:18:59,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2021-11-09 09:18:59,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/data/2337ff612/b8ddc7252e3c4d359929347c0e47790e/FLAG41cb97653 [2021-11-09 09:18:59,626 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:18:59,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2021-11-09 09:18:59,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/data/2337ff612/b8ddc7252e3c4d359929347c0e47790e/FLAG41cb97653 [2021-11-09 09:18:59,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/data/2337ff612/b8ddc7252e3c4d359929347c0e47790e [2021-11-09 09:18:59,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:18:59,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:18:59,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:18:59,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:18:59,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:18:59,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:18:59" (1/1) ... [2021-11-09 09:18:59,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230ce457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:59, skipping insertion in model container [2021-11-09 09:18:59,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:18:59" (1/1) ... [2021-11-09 09:18:59,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:18:59,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:19:00,205 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_7786385e-9ad4-4974-a313-0a0ab4270e0e/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2021-11-09 09:19:00,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:19:00,303 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:19:00,373 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_7786385e-9ad4-4974-a313-0a0ab4270e0e/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c[8940,8953] [2021-11-09 09:19:00,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:19:00,434 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:19:00,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00 WrapperNode [2021-11-09 09:19:00,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:19:00,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:19:00,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:19:00,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:19:00,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:19:00,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:19:00,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:19:00,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:19:00,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:19:00,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:19:00,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:19:00,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:19:00,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (1/1) ... [2021-11-09 09:19:00,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:19:00,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:19:00,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:19:00,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:19:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:19:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:19:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:19:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:19:01,709 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:19:01,710 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-11-09 09:19:01,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:19:01 BoogieIcfgContainer [2021-11-09 09:19:01,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:19:01,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:19:01,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:19:01,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:19:01,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:18:59" (1/3) ... [2021-11-09 09:19:01,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b250b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:19:01, skipping insertion in model container [2021-11-09 09:19:01,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:19:00" (2/3) ... [2021-11-09 09:19:01,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b250b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:19:01, skipping insertion in model container [2021-11-09 09:19:01,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:19:01" (3/3) ... [2021-11-09 09:19:01,742 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2021-11-09 09:19:01,755 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:19:01,755 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-09 09:19:01,818 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:19:01,828 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 [2021-11-09 09:19:01,828 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-09 09:19:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-11-09 09:19:01,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-09 09:19:01,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:01,859 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:01,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:01,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1844308238, now seen corresponding path program 1 times [2021-11-09 09:19:01,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:01,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105154671] [2021-11-09 09:19:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:01,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:02,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:02,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:02,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105154671] [2021-11-09 09:19:02,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105154671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:02,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:02,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:19:02,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227857219] [2021-11-09 09:19:02,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:19:02,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:02,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:19:02,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:19:02,248 INFO L87 Difference]: Start difference. First operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-09 09:19:02,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:02,290 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-11-09 09:19:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:19:02,292 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-09 09:19:02,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:02,306 INFO L225 Difference]: With dead ends: 232 [2021-11-09 09:19:02,306 INFO L226 Difference]: Without dead ends: 115 [2021-11-09 09:19:02,309 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 [2021-11-09 09:19:02,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-09 09:19:02,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-09 09:19:02,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 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) [2021-11-09 09:19:02,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-11-09 09:19:02,364 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2021-11-09 09:19:02,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:02,366 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-11-09 09:19:02,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-09 09:19:02,367 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-11-09 09:19:02,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-09 09:19:02,370 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:02,370 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:02,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:19:02,371 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:02,376 INFO L85 PathProgramCache]: Analyzing trace with hash -323074868, now seen corresponding path program 1 times [2021-11-09 09:19:02,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:02,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564752485] [2021-11-09 09:19:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:02,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:02,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:02,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564752485] [2021-11-09 09:19:02,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564752485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:02,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:02,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:19:02,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334414416] [2021-11-09 09:19:02,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:19:02,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:02,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:19:02,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:19:02,485 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-09 09:19:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:02,498 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-11-09 09:19:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:19:02,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-09 09:19:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:02,500 INFO L225 Difference]: With dead ends: 115 [2021-11-09 09:19:02,500 INFO L226 Difference]: Without dead ends: 49 [2021-11-09 09:19:02,504 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 [2021-11-09 09:19:02,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-09 09:19:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-09 09:19:02,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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) [2021-11-09 09:19:02,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-11-09 09:19:02,510 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2021-11-09 09:19:02,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:02,511 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-11-09 09:19:02,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-09 09:19:02,511 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-11-09 09:19:02,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-09 09:19:02,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:02,512 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] [2021-11-09 09:19:02,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:19:02,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:02,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash -426243093, now seen corresponding path program 1 times [2021-11-09 09:19:02,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:02,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749344484] [2021-11-09 09:19:02,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:02,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:02,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:02,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749344484] [2021-11-09 09:19:02,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749344484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:02,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:02,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:19:02,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774023375] [2021-11-09 09:19:02,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:19:02,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:02,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:19:02,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:19:02,685 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-09 09:19:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:02,866 INFO L93 Difference]: Finished difference Result 158 states and 235 transitions. [2021-11-09 09:19:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:19:02,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-11-09 09:19:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:02,868 INFO L225 Difference]: With dead ends: 158 [2021-11-09 09:19:02,868 INFO L226 Difference]: Without dead ends: 115 [2021-11-09 09:19:02,869 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 [2021-11-09 09:19:02,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-09 09:19:02,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 68. [2021-11-09 09:19:02,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.492537313432836) internal successors, (100), 67 states have internal predecessors, (100), 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) [2021-11-09 09:19:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2021-11-09 09:19:02,881 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2021-11-09 09:19:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:02,882 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2021-11-09 09:19:02,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-09 09:19:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2021-11-09 09:19:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-09 09:19:02,884 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:02,884 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] [2021-11-09 09:19:02,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:19:02,884 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:02,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:02,885 INFO L85 PathProgramCache]: Analyzing trace with hash 844046893, now seen corresponding path program 1 times [2021-11-09 09:19:02,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:02,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609239767] [2021-11-09 09:19:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:02,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:02,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:02,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609239767] [2021-11-09 09:19:02,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609239767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:02,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:02,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:19:02,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067738310] [2021-11-09 09:19:02,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:19:02,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:02,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:19:02,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:19:02,940 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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) [2021-11-09 09:19:02,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:02,973 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2021-11-09 09:19:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:19:02,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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 [2021-11-09 09:19:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:02,975 INFO L225 Difference]: With dead ends: 151 [2021-11-09 09:19:02,975 INFO L226 Difference]: Without dead ends: 89 [2021-11-09 09:19:02,976 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:19:02,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-09 09:19:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-11-09 09:19:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.441860465116279) internal successors, (124), 86 states have internal predecessors, (124), 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) [2021-11-09 09:19:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-11-09 09:19:03,013 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2021-11-09 09:19:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:03,013 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-11-09 09:19:03,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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) [2021-11-09 09:19:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-11-09 09:19:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-09 09:19:03,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:03,015 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] [2021-11-09 09:19:03,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:19:03,015 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:03,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:03,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1604149312, now seen corresponding path program 1 times [2021-11-09 09:19:03,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:03,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51436308] [2021-11-09 09:19:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:03,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:03,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:03,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51436308] [2021-11-09 09:19:03,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51436308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:03,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:03,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:19:03,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685486954] [2021-11-09 09:19:03,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:19:03,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:03,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:19:03,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:19:03,131 INFO L87 Difference]: Start difference. First operand 87 states and 124 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) [2021-11-09 09:19:03,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:03,244 INFO L93 Difference]: Finished difference Result 307 states and 445 transitions. [2021-11-09 09:19:03,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:19:03,244 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 [2021-11-09 09:19:03,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:03,247 INFO L225 Difference]: With dead ends: 307 [2021-11-09 09:19:03,247 INFO L226 Difference]: Without dead ends: 226 [2021-11-09 09:19:03,248 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 [2021-11-09 09:19:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-09 09:19:03,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 146. [2021-11-09 09:19:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4) internal successors, (203), 145 states have internal predecessors, (203), 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) [2021-11-09 09:19:03,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 203 transitions. [2021-11-09 09:19:03,268 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 203 transitions. Word has length 25 [2021-11-09 09:19:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:03,268 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 203 transitions. [2021-11-09 09:19:03,269 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) [2021-11-09 09:19:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 203 transitions. [2021-11-09 09:19:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-09 09:19:03,270 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:03,270 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] [2021-11-09 09:19:03,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:19:03,271 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash 731508994, now seen corresponding path program 1 times [2021-11-09 09:19:03,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:03,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214881981] [2021-11-09 09:19:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:03,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:03,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:03,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214881981] [2021-11-09 09:19:03,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214881981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:03,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:03,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:19:03,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986318256] [2021-11-09 09:19:03,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:19:03,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:19:03,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:19:03,364 INFO L87 Difference]: Start difference. First operand 146 states and 203 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-11-09 09:19:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:03,478 INFO L93 Difference]: Finished difference Result 303 states and 430 transitions. [2021-11-09 09:19:03,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:19:03,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-11-09 09:19:03,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:03,483 INFO L225 Difference]: With dead ends: 303 [2021-11-09 09:19:03,483 INFO L226 Difference]: Without dead ends: 301 [2021-11-09 09:19:03,485 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:19:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-11-09 09:19:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 146. [2021-11-09 09:19:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3862068965517242) internal successors, (201), 145 states have internal predecessors, (201), 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) [2021-11-09 09:19:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 201 transitions. [2021-11-09 09:19:03,527 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 201 transitions. Word has length 26 [2021-11-09 09:19:03,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:03,527 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 201 transitions. [2021-11-09 09:19:03,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-11-09 09:19:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 201 transitions. [2021-11-09 09:19:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 09:19:03,529 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:03,530 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, 1, 1, 1, 1, 1] [2021-11-09 09:19:03,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:19:03,530 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:03,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:03,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1548133156, now seen corresponding path program 1 times [2021-11-09 09:19:03,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:03,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821049744] [2021-11-09 09:19:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:03,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:03,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:03,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821049744] [2021-11-09 09:19:03,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821049744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:03,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:03,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:19:03,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484393157] [2021-11-09 09:19:03,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:19:03,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:19:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:19:03,613 INFO L87 Difference]: Start difference. First operand 146 states and 201 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-09 09:19:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:03,748 INFO L93 Difference]: Finished difference Result 299 states and 419 transitions. [2021-11-09 09:19:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 09:19:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-09 09:19:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:03,750 INFO L225 Difference]: With dead ends: 299 [2021-11-09 09:19:03,751 INFO L226 Difference]: Without dead ends: 218 [2021-11-09 09:19:03,754 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:19:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-09 09:19:03,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2021-11-09 09:19:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.3831775700934579) internal successors, (296), 214 states have internal predecessors, (296), 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) [2021-11-09 09:19:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 296 transitions. [2021-11-09 09:19:03,779 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 296 transitions. Word has length 31 [2021-11-09 09:19:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:03,781 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 296 transitions. [2021-11-09 09:19:03,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-09 09:19:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 296 transitions. [2021-11-09 09:19:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 09:19:03,790 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:03,790 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, 1, 1, 1, 1, 1] [2021-11-09 09:19:03,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 09:19:03,801 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:03,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:03,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1289967718, now seen corresponding path program 1 times [2021-11-09 09:19:03,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:03,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420641431] [2021-11-09 09:19:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:03,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:03,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:03,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420641431] [2021-11-09 09:19:03,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420641431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:03,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:03,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:19:03,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124982280] [2021-11-09 09:19:03,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:19:03,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:03,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:19:03,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:19:03,889 INFO L87 Difference]: Start difference. First operand 215 states and 296 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-09 09:19:03,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:03,961 INFO L93 Difference]: Finished difference Result 643 states and 898 transitions. [2021-11-09 09:19:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:19:03,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2021-11-09 09:19:03,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:03,965 INFO L225 Difference]: With dead ends: 643 [2021-11-09 09:19:03,966 INFO L226 Difference]: Without dead ends: 492 [2021-11-09 09:19:03,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:19:03,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-11-09 09:19:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 215. [2021-11-09 09:19:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.3738317757009346) internal successors, (294), 214 states have internal predecessors, (294), 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) [2021-11-09 09:19:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 294 transitions. [2021-11-09 09:19:03,995 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 294 transitions. Word has length 31 [2021-11-09 09:19:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:03,996 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 294 transitions. [2021-11-09 09:19:03,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-09 09:19:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 294 transitions. [2021-11-09 09:19:04,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 09:19:04,000 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:04,000 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, 1, 1, 1, 1, 1] [2021-11-09 09:19:04,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 09:19:04,002 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:04,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1682994728, now seen corresponding path program 1 times [2021-11-09 09:19:04,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:04,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906581972] [2021-11-09 09:19:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:04,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:04,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:04,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906581972] [2021-11-09 09:19:04,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906581972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:04,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:04,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:19:04,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617684425] [2021-11-09 09:19:04,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:19:04,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:04,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:19:04,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:19:04,080 INFO L87 Difference]: Start difference. First operand 215 states and 294 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-11-09 09:19:04,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:04,265 INFO L93 Difference]: Finished difference Result 466 states and 647 transitions. [2021-11-09 09:19:04,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:19:04,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-11-09 09:19:04,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:04,268 INFO L225 Difference]: With dead ends: 466 [2021-11-09 09:19:04,268 INFO L226 Difference]: Without dead ends: 315 [2021-11-09 09:19:04,272 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:19:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-09 09:19:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 241. [2021-11-09 09:19:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.3833333333333333) internal successors, (332), 240 states have internal predecessors, (332), 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) [2021-11-09 09:19:04,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 332 transitions. [2021-11-09 09:19:04,297 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 332 transitions. Word has length 31 [2021-11-09 09:19:04,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:04,298 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 332 transitions. [2021-11-09 09:19:04,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-11-09 09:19:04,298 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 332 transitions. [2021-11-09 09:19:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-09 09:19:04,300 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:04,300 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:04,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 09:19:04,301 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:04,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1164793824, now seen corresponding path program 1 times [2021-11-09 09:19:04,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:04,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461350109] [2021-11-09 09:19:04,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:04,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-09 09:19:04,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:04,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461350109] [2021-11-09 09:19:04,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461350109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:04,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:04,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:19:04,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594176847] [2021-11-09 09:19:04,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:19:04,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:04,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:19:04,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:19:04,393 INFO L87 Difference]: Start difference. First operand 241 states and 332 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-11-09 09:19:04,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:04,513 INFO L93 Difference]: Finished difference Result 737 states and 1016 transitions. [2021-11-09 09:19:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:19:04,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 51 [2021-11-09 09:19:04,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:04,519 INFO L225 Difference]: With dead ends: 737 [2021-11-09 09:19:04,519 INFO L226 Difference]: Without dead ends: 502 [2021-11-09 09:19:04,520 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:19:04,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-11-09 09:19:04,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 250. [2021-11-09 09:19:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.3694779116465863) internal successors, (341), 249 states have internal predecessors, (341), 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) [2021-11-09 09:19:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 341 transitions. [2021-11-09 09:19:04,549 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 341 transitions. Word has length 51 [2021-11-09 09:19:04,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:04,550 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 341 transitions. [2021-11-09 09:19:04,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-11-09 09:19:04,550 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 341 transitions. [2021-11-09 09:19:04,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-09 09:19:04,551 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:04,552 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:04,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 09:19:04,552 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:04,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:04,553 INFO L85 PathProgramCache]: Analyzing trace with hash -463193950, now seen corresponding path program 1 times [2021-11-09 09:19:04,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:04,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796417175] [2021-11-09 09:19:04,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:04,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-09 09:19:04,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:04,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796417175] [2021-11-09 09:19:04,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796417175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:04,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:04,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:19:04,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000257971] [2021-11-09 09:19:04,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:19:04,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:04,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:19:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:19:04,635 INFO L87 Difference]: Start difference. First operand 250 states and 341 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-11-09 09:19:04,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:04,718 INFO L93 Difference]: Finished difference Result 588 states and 802 transitions. [2021-11-09 09:19:04,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:19:04,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 51 [2021-11-09 09:19:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:04,721 INFO L225 Difference]: With dead ends: 588 [2021-11-09 09:19:04,721 INFO L226 Difference]: Without dead ends: 344 [2021-11-09 09:19:04,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:19:04,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-11-09 09:19:04,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 218. [2021-11-09 09:19:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.3410138248847927) internal successors, (291), 217 states have internal predecessors, (291), 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) [2021-11-09 09:19:04,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 291 transitions. [2021-11-09 09:19:04,747 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 291 transitions. Word has length 51 [2021-11-09 09:19:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:04,748 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 291 transitions. [2021-11-09 09:19:04,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-11-09 09:19:04,748 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 291 transitions. [2021-11-09 09:19:04,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-09 09:19:04,749 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:04,749 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:04,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 09:19:04,750 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:04,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:04,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1312943258, now seen corresponding path program 1 times [2021-11-09 09:19:04,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:04,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886148749] [2021-11-09 09:19:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:04,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:04,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:04,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886148749] [2021-11-09 09:19:04,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886148749] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:19:04,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871660711] [2021-11-09 09:19:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:04,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:19:04,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:19:04,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:19:04,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:19:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:05,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:19:05,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:19:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:05,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871660711] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:19:05,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:19:05,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-09 09:19:05,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685439453] [2021-11-09 09:19:05,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:19:05,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:05,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:19:05,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:19:05,317 INFO L87 Difference]: Start difference. First operand 218 states and 291 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-11-09 09:19:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:05,581 INFO L93 Difference]: Finished difference Result 618 states and 840 transitions. [2021-11-09 09:19:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:19:05,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-11-09 09:19:05,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:05,585 INFO L225 Difference]: With dead ends: 618 [2021-11-09 09:19:05,585 INFO L226 Difference]: Without dead ends: 454 [2021-11-09 09:19:05,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:19:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-11-09 09:19:05,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 266. [2021-11-09 09:19:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.3396226415094339) internal successors, (355), 265 states have internal predecessors, (355), 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) [2021-11-09 09:19:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 355 transitions. [2021-11-09 09:19:05,618 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 355 transitions. Word has length 52 [2021-11-09 09:19:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:05,619 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 355 transitions. [2021-11-09 09:19:05,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-11-09 09:19:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 355 transitions. [2021-11-09 09:19:05,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-09 09:19:05,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:05,621 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:05,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:19:05,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:19:05,846 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:05,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:05,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1082347880, now seen corresponding path program 2 times [2021-11-09 09:19:05,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:05,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662533905] [2021-11-09 09:19:05,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:05,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-09 09:19:05,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:05,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662533905] [2021-11-09 09:19:05,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662533905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:05,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:05,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:19:05,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115878331] [2021-11-09 09:19:05,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:19:05,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:05,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:19:05,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:19:05,977 INFO L87 Difference]: Start difference. First operand 266 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-11-09 09:19:06,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:06,235 INFO L93 Difference]: Finished difference Result 794 states and 1075 transitions. [2021-11-09 09:19:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:19:06,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 73 [2021-11-09 09:19:06,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:06,239 INFO L225 Difference]: With dead ends: 794 [2021-11-09 09:19:06,240 INFO L226 Difference]: Without dead ends: 575 [2021-11-09 09:19:06,240 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:19:06,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-11-09 09:19:06,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 370. [2021-11-09 09:19:06,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 1.3360433604336044) internal successors, (493), 369 states have internal predecessors, (493), 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) [2021-11-09 09:19:06,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 493 transitions. [2021-11-09 09:19:06,298 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 493 transitions. Word has length 73 [2021-11-09 09:19:06,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:06,298 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 493 transitions. [2021-11-09 09:19:06,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-11-09 09:19:06,299 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 493 transitions. [2021-11-09 09:19:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-09 09:19:06,300 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:06,300 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:06,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 09:19:06,301 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:19:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:06,301 INFO L85 PathProgramCache]: Analyzing trace with hash -807588266, now seen corresponding path program 1 times [2021-11-09 09:19:06,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:06,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280575188] [2021-11-09 09:19:06,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:06,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-09 09:19:06,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:06,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280575188] [2021-11-09 09:19:06,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280575188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:06,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:06,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:19:06,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688088704] [2021-11-09 09:19:06,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:19:06,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:06,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:19:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:19:06,378 INFO L87 Difference]: Start difference. First operand 370 states and 493 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-11-09 09:19:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:06,499 INFO L93 Difference]: Finished difference Result 768 states and 1024 transitions. [2021-11-09 09:19:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:19:06,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 73 [2021-11-09 09:19:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:06,500 INFO L225 Difference]: With dead ends: 768 [2021-11-09 09:19:06,500 INFO L226 Difference]: Without dead ends: 0 [2021-11-09 09:19:06,502 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:19:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-09 09:19:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-09 09:19:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:19:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 09:19:06,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2021-11-09 09:19:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:06,503 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:19:06,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-11-09 09:19:06,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:19:06,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-09 09:19:06,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:19:06,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:19:06,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:19:06,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 09:19:06,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-09 09:19:06,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:06,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:07,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:08,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:19:14,131 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 612) no Hoare annotation was computed. [2021-11-09 09:19:14,131 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 175) no Hoare annotation was computed. [2021-11-09 09:19:14,131 INFO L857 garLoopResultBuilder]: For program point L169-2(lines 169 175) no Hoare annotation was computed. [2021-11-09 09:19:14,131 INFO L857 garLoopResultBuilder]: For program point L169-4(lines 169 175) no Hoare annotation was computed. [2021-11-09 09:19:14,132 INFO L853 garLoopResultBuilder]: At program point L599(lines 550 600) the Hoare annotation is: false [2021-11-09 09:19:14,132 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 385) no Hoare annotation was computed. [2021-11-09 09:19:14,132 INFO L857 garLoopResultBuilder]: For program point L368-1(lines 368 385) no Hoare annotation was computed. [2021-11-09 09:19:14,132 INFO L857 garLoopResultBuilder]: For program point L368-2(lines 368 385) no Hoare annotation was computed. [2021-11-09 09:19:14,132 INFO L857 garLoopResultBuilder]: For program point L368-3(lines 368 385) no Hoare annotation was computed. [2021-11-09 09:19:14,132 INFO L857 garLoopResultBuilder]: For program point L368-4(lines 368 385) no Hoare annotation was computed. [2021-11-09 09:19:14,132 INFO L857 garLoopResultBuilder]: For program point L368-5(lines 368 385) no Hoare annotation was computed. [2021-11-09 09:19:14,132 INFO L853 garLoopResultBuilder]: At program point L336(lines 335 354) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 (<= 1 ~waterLevel~0) .cse3 (not (= 0 ~systemActive~0))))) [2021-11-09 09:19:14,132 INFO L857 garLoopResultBuilder]: For program point L336-1(lines 336 342) no Hoare annotation was computed. [2021-11-09 09:19:14,133 INFO L853 garLoopResultBuilder]: At program point L336-2(lines 335 354) the Hoare annotation is: false [2021-11-09 09:19:14,133 INFO L853 garLoopResultBuilder]: At program point L336-3(lines 335 354) the Hoare annotation is: false [2021-11-09 09:19:14,133 INFO L853 garLoopResultBuilder]: At program point L502(lines 487 505) the Hoare annotation is: false [2021-11-09 09:19:14,133 INFO L853 garLoopResultBuilder]: At program point L502-1(lines 487 505) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse5 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse6 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5 .cse6) (and .cse0 (not .cse5) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (not .cse4) (<= 1 ~waterLevel~0) .cse3 .cse6))) [2021-11-09 09:19:14,133 INFO L853 garLoopResultBuilder]: At program point L502-2(lines 487 505) the Hoare annotation is: false [2021-11-09 09:19:14,134 INFO L853 garLoopResultBuilder]: At program point L502-3(lines 487 505) the Hoare annotation is: false [2021-11-09 09:19:14,134 INFO L853 garLoopResultBuilder]: At program point L502-4(lines 487 505) the Hoare annotation is: false [2021-11-09 09:19:14,134 INFO L853 garLoopResultBuilder]: At program point L502-5(lines 487 505) the Hoare annotation is: false [2021-11-09 09:19:14,134 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 277) no Hoare annotation was computed. [2021-11-09 09:19:14,134 INFO L857 garLoopResultBuilder]: For program point L271-1(lines 271 277) no Hoare annotation was computed. [2021-11-09 09:19:14,134 INFO L857 garLoopResultBuilder]: For program point L271-2(lines 271 277) no Hoare annotation was computed. [2021-11-09 09:19:14,134 INFO L857 garLoopResultBuilder]: For program point L271-3(lines 271 277) no Hoare annotation was computed. [2021-11-09 09:19:14,135 INFO L857 garLoopResultBuilder]: For program point L271-4(lines 271 277) no Hoare annotation was computed. [2021-11-09 09:19:14,135 INFO L857 garLoopResultBuilder]: For program point L271-5(lines 271 277) no Hoare annotation was computed. [2021-11-09 09:19:14,135 INFO L857 garLoopResultBuilder]: For program point L206(lines 206 210) no Hoare annotation was computed. [2021-11-09 09:19:14,135 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2021-11-09 09:19:14,135 INFO L860 garLoopResultBuilder]: At program point L140-1(lines 140 147) the Hoare annotation is: true [2021-11-09 09:19:14,135 INFO L857 garLoopResultBuilder]: For program point L372(lines 372 380) no Hoare annotation was computed. [2021-11-09 09:19:14,136 INFO L857 garLoopResultBuilder]: For program point L372-1(lines 372 380) no Hoare annotation was computed. [2021-11-09 09:19:14,136 INFO L857 garLoopResultBuilder]: For program point L372-2(lines 372 380) no Hoare annotation was computed. [2021-11-09 09:19:14,136 INFO L857 garLoopResultBuilder]: For program point L372-3(lines 372 380) no Hoare annotation was computed. [2021-11-09 09:19:14,136 INFO L857 garLoopResultBuilder]: For program point L372-4(lines 372 380) no Hoare annotation was computed. [2021-11-09 09:19:14,136 INFO L857 garLoopResultBuilder]: For program point L372-5(lines 372 380) no Hoare annotation was computed. [2021-11-09 09:19:14,136 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 577) no Hoare annotation was computed. [2021-11-09 09:19:14,137 INFO L853 garLoopResultBuilder]: At program point L571-1(lines 571 577) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse2 .cse3) (and .cse0 .cse1 .cse5 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1) (<= 1 ~waterLevel~0) .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 .cse5 .cse3 (= ~waterLevel~0 1) .cse4))) [2021-11-09 09:19:14,137 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 612) no Hoare annotation was computed. [2021-11-09 09:19:14,137 INFO L853 garLoopResultBuilder]: At program point L276(lines 267 280) the Hoare annotation is: false [2021-11-09 09:19:14,137 INFO L853 garLoopResultBuilder]: At program point L276-1(lines 267 280) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4))) [2021-11-09 09:19:14,137 INFO L853 garLoopResultBuilder]: At program point L276-2(lines 267 280) the Hoare annotation is: false [2021-11-09 09:19:14,138 INFO L853 garLoopResultBuilder]: At program point L276-3(lines 267 280) the Hoare annotation is: false [2021-11-09 09:19:14,138 INFO L853 garLoopResultBuilder]: At program point L276-4(lines 267 280) the Hoare annotation is: false [2021-11-09 09:19:14,138 INFO L853 garLoopResultBuilder]: At program point L276-5(lines 267 280) the Hoare annotation is: false [2021-11-09 09:19:14,138 INFO L853 garLoopResultBuilder]: At program point L343(lines 343 349) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse4 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse4 .cse2 .cse3))) [2021-11-09 09:19:14,138 INFO L853 garLoopResultBuilder]: At program point L343-1(lines 343 349) the Hoare annotation is: false [2021-11-09 09:19:14,139 INFO L853 garLoopResultBuilder]: At program point L343-2(lines 343 349) the Hoare annotation is: false [2021-11-09 09:19:14,139 INFO L853 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1) (= ULTIMATE.start_main_~tmp~0 ~systemActive~0)) [2021-11-09 09:19:14,139 INFO L853 garLoopResultBuilder]: At program point L313(lines 1 981) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-09 09:19:14,139 INFO L860 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2021-11-09 09:19:14,139 INFO L857 garLoopResultBuilder]: For program point L612(line 612) no Hoare annotation was computed. [2021-11-09 09:19:14,139 INFO L857 garLoopResultBuilder]: For program point L612-1(line 612) no Hoare annotation was computed. [2021-11-09 09:19:14,139 INFO L857 garLoopResultBuilder]: For program point L612-2(line 612) no Hoare annotation was computed. [2021-11-09 09:19:14,140 INFO L853 garLoopResultBuilder]: At program point L447(lines 442 450) the Hoare annotation is: false [2021-11-09 09:19:14,140 INFO L853 garLoopResultBuilder]: At program point L447-1(lines 442 450) the Hoare annotation is: false [2021-11-09 09:19:14,140 INFO L853 garLoopResultBuilder]: At program point L447-2(lines 442 450) the Hoare annotation is: false [2021-11-09 09:19:14,140 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 594) no Hoare annotation was computed. [2021-11-09 09:19:14,140 INFO L857 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2021-11-09 09:19:14,140 INFO L857 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2021-11-09 09:19:14,141 INFO L857 garLoopResultBuilder]: For program point L515-3(lines 515 519) no Hoare annotation was computed. [2021-11-09 09:19:14,141 INFO L857 garLoopResultBuilder]: For program point L515-5(lines 515 519) no Hoare annotation was computed. [2021-11-09 09:19:14,141 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-09 09:19:14,141 INFO L857 garLoopResultBuilder]: For program point L515-6(lines 515 519) no Hoare annotation was computed. [2021-11-09 09:19:14,141 INFO L857 garLoopResultBuilder]: For program point L515-8(lines 515 519) no Hoare annotation was computed. [2021-11-09 09:19:14,141 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 222) no Hoare annotation was computed. [2021-11-09 09:19:14,141 INFO L853 garLoopResultBuilder]: At program point L286(lines 281 289) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (not (= 0 ~systemActive~0))) [2021-11-09 09:19:14,142 INFO L853 garLoopResultBuilder]: At program point L286-1(lines 281 289) the Hoare annotation is: false [2021-11-09 09:19:14,142 INFO L853 garLoopResultBuilder]: At program point L286-2(lines 281 289) the Hoare annotation is: false [2021-11-09 09:19:14,142 INFO L857 garLoopResultBuilder]: For program point L552(lines 551 598) no Hoare annotation was computed. [2021-11-09 09:19:14,142 INFO L853 garLoopResultBuilder]: At program point L321(lines 316 324) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1)) [2021-11-09 09:19:14,142 INFO L857 garLoopResultBuilder]: For program point L553(lines 553 557) no Hoare annotation was computed. [2021-11-09 09:19:14,142 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-09 09:19:14,142 INFO L857 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2021-11-09 09:19:14,142 INFO L853 garLoopResultBuilder]: At program point L587-1(lines 336 342) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse4 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse4 .cse2 .cse3))) [2021-11-09 09:19:14,142 INFO L853 garLoopResultBuilder]: At program point L521(lines 506 524) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0) (not (= 0 ~systemActive~0))) [2021-11-09 09:19:14,143 INFO L853 garLoopResultBuilder]: At program point L521-1(lines 506 524) the Hoare annotation is: false [2021-11-09 09:19:14,143 INFO L853 garLoopResultBuilder]: At program point L521-2(lines 506 524) the Hoare annotation is: false [2021-11-09 09:19:14,143 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-09 09:19:14,143 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 198) no Hoare annotation was computed. [2021-11-09 09:19:14,143 INFO L857 garLoopResultBuilder]: For program point L194-3(lines 194 198) no Hoare annotation was computed. [2021-11-09 09:19:14,143 INFO L857 garLoopResultBuilder]: For program point L194-6(lines 194 198) no Hoare annotation was computed. [2021-11-09 09:19:14,143 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: false [2021-11-09 09:19:14,143 INFO L857 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2021-11-09 09:19:14,144 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 411) no Hoare annotation was computed. [2021-11-09 09:19:14,144 INFO L857 garLoopResultBuilder]: For program point L394-1(lines 394 411) no Hoare annotation was computed. [2021-11-09 09:19:14,144 INFO L857 garLoopResultBuilder]: For program point L394-2(lines 394 411) no Hoare annotation was computed. [2021-11-09 09:19:14,144 INFO L853 garLoopResultBuilder]: At program point L263(lines 258 266) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))) (and .cse0 .cse1 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-11-09 09:19:14,144 INFO L853 garLoopResultBuilder]: At program point L263-1(lines 258 266) the Hoare annotation is: false [2021-11-09 09:19:14,144 INFO L853 garLoopResultBuilder]: At program point L263-2(lines 258 266) the Hoare annotation is: false [2021-11-09 09:19:14,144 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 612) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point L561(lines 561 567) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L853 garLoopResultBuilder]: At program point L561-1(lines 561 567) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse2 .cse3) (and .cse0 .cse1 .cse5 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1) (<= 1 ~waterLevel~0) .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 .cse5 .cse3 (= ~waterLevel~0 1) .cse4))) [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 178) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L853 garLoopResultBuilder]: At program point L165-1(lines 1 981) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse3) (and .cse0 .cse1 .cse4 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1) (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 .cse4 .cse2 (= ~waterLevel~0 1) .cse3))) [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point L165-2(lines 165 178) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L853 garLoopResultBuilder]: At program point L165-3(lines 1 981) the Hoare annotation is: false [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 336 342) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point L165-4(lines 165 178) no Hoare annotation was computed. [2021-11-09 09:19:14,145 INFO L853 garLoopResultBuilder]: At program point L165-5(lines 1 981) the Hoare annotation is: false [2021-11-09 09:19:14,145 INFO L857 garLoopResultBuilder]: For program point L529(lines 529 535) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L853 garLoopResultBuilder]: At program point L529-1(lines 529 535) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3))) [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496-2(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496-3(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496-5(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496-6(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496-8(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496-9(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,146 INFO L857 garLoopResultBuilder]: For program point L496-11(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,147 INFO L857 garLoopResultBuilder]: For program point L496-12(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,147 INFO L857 garLoopResultBuilder]: For program point L496-14(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,147 INFO L857 garLoopResultBuilder]: For program point L496-15(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,147 INFO L857 garLoopResultBuilder]: For program point L496-17(lines 496 500) no Hoare annotation was computed. [2021-11-09 09:19:14,147 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2021-11-09 09:19:14,147 INFO L857 garLoopResultBuilder]: For program point L398-1(lines 398 406) no Hoare annotation was computed. [2021-11-09 09:19:14,147 INFO L857 garLoopResultBuilder]: For program point L398-2(lines 398 406) no Hoare annotation was computed. [2021-11-09 09:19:14,151 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:14,152 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:19:14,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:19:14 BoogieIcfgContainer [2021-11-09 09:19:14,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 09:19:14,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:19:14,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:19:14,180 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:19:14,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:19:01" (3/4) ... [2021-11-09 09:19:14,183 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-09 09:19:14,203 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-09 09:19:14,204 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-09 09:19:14,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-09 09:19:14,207 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-09 09:19:14,208 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-09 09:19:14,209 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 09:19:14,210 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 09:19:14,235 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == 1) && waterLevel == 1 [2021-11-09 09:19:14,235 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == 1) && waterLevel == 1) && tmp == systemActive [2021-11-09 09:19:14,236 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && 2 <= \result) && 2 <= tmp) && tmp == 0) && \result == 0) && !(0 == systemActive)) || ((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) [2021-11-09 09:19:14,236 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1)) || ((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) [2021-11-09 09:19:14,237 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1)) || ((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) [2021-11-09 09:19:14,237 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) [2021-11-09 09:19:14,237 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1)) || ((((tmp == 1 && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-11-09 09:19:14,238 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && tmp == 0) && \result == 0) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) [2021-11-09 09:19:14,238 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) [2021-11-09 09:19:14,239 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && !(0 == systemActive)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) [2021-11-09 09:19:14,240 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && splverifierCounter == 0) && \result == 0) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive) [2021-11-09 09:19:14,241 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 1 && !(\result == 0)) && splverifierCounter == 0) && pumpRunning == 0) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-11-09 09:19:14,242 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1 && splverifierCounter == 0) && \result == 0) && !(tmp___0 == 0)) && !(\result == 0)) && 1 <= waterLevel) && \result == 1) && tmp == 0) && !(0 == systemActive) [2021-11-09 09:19:14,243 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) && tmp == 0) && \result == 0) && !(0 == systemActive)) || (((((((((tmp == 1 && !(\result == 0)) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && !(tmp == 0)) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-11-09 09:19:14,324 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:19:14,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:19:14,326 INFO L168 Benchmark]: Toolchain (without parser) took 14428.43 ms. Allocated memory was 90.2 MB in the beginning and 239.1 MB in the end (delta: 148.9 MB). Free memory was 54.5 MB in the beginning and 111.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 91.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:19:14,326 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:19:14,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.45 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 54.2 MB in the beginning and 103.0 MB in the end (delta: -48.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:19:14,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.56 ms. Allocated memory is still 136.3 MB. Free memory was 103.0 MB in the beginning and 99.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:19:14,328 INFO L168 Benchmark]: Boogie Preprocessor took 75.17 ms. Allocated memory is still 136.3 MB. Free memory was 99.4 MB in the beginning and 96.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:19:14,328 INFO L168 Benchmark]: RCFGBuilder took 1104.33 ms. Allocated memory is still 136.3 MB. Free memory was 96.7 MB in the beginning and 109.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:19:14,328 INFO L168 Benchmark]: TraceAbstraction took 12464.59 ms. Allocated memory was 136.3 MB in the beginning and 239.1 MB in the end (delta: 102.8 MB). Free memory was 109.0 MB in the beginning and 120.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 142.0 MB. Max. memory is 16.1 GB. [2021-11-09 09:19:14,329 INFO L168 Benchmark]: Witness Printer took 144.50 ms. Allocated memory is still 239.1 MB. Free memory was 120.8 MB in the beginning and 111.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:19:14,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 537.45 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 54.2 MB in the beginning and 103.0 MB in the end (delta: -48.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.56 ms. Allocated memory is still 136.3 MB. Free memory was 103.0 MB in the beginning and 99.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.17 ms. Allocated memory is still 136.3 MB. Free memory was 99.4 MB in the beginning and 96.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1104.33 ms. Allocated memory is still 136.3 MB. Free memory was 96.7 MB in the beginning and 109.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12464.59 ms. Allocated memory was 136.3 MB in the beginning and 239.1 MB in the end (delta: 102.8 MB). Free memory was 109.0 MB in the beginning and 120.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 142.0 MB. Max. memory is 16.1 GB. * Witness Printer took 144.50 ms. Allocated memory is still 239.1 MB. Free memory was 120.8 MB in the beginning and 111.4 MB in the end (delta: 9.4 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 - PositiveResult [Line: 612]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 612]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 612]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 12.3s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1592 SDtfs, 2312 SDslu, 2511 SDs, 0 SdLazy, 387 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=13, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 209 NumberOfFragments, 684 HoareAnnotationTreeSize, 44 FomulaSimplifications, 1396782 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 44 FomulaSimplificationsInter, 949913 FormulaSimplificationTreeSizeReductionInter, 5.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 575 NumberOfCodeBlocks, 575 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 560 ConstructedInterpolants, 0 QuantifiedInterpolants, 978 SizeOfPredicates, 3 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 148/154 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: (((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: ((((((tmp == 1 && !(\result == 0)) && splverifierCounter == 0) && pumpRunning == 0) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1)) || ((((tmp == 1 && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == 1) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: (((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) && tmp == 0) && \result == 0) && !(0 == systemActive)) || (((((((((tmp == 1 && !(\result == 0)) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && !(tmp == 0)) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && 2 <= \result) && 2 <= tmp) && tmp == 0) && \result == 0) && !(0 == systemActive)) || ((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && \result == 0) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive) - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: ((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1)) || ((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: (((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && tmp == 0) && \result == 0) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: (((((((tmp == 1 && splverifierCounter == 0) && \result == 0) && !(tmp___0 == 0)) && !(\result == 0)) && 1 <= waterLevel) && \result == 1) && tmp == 0) && !(0 == systemActive) - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: ((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1)) || ((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: (((((((tmp == 1 && splverifierCounter == 0) && 2 <= waterLevel) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && !(0 == systemActive)) || (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 529]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && \result == 1) && waterLevel == 1) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == 1) && waterLevel == 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-09 09:19:14,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7786385e-9ad4-4974-a313-0a0ab4270e0e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE