./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be --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 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:30:27,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:30:27,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:30:27,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:30:27,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:30:27,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:30:27,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:30:27,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:30:27,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:30:27,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:30:27,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:30:27,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:30:27,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:30:27,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:30:27,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:30:27,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:30:27,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:30:27,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:30:27,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:30:27,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:30:27,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:30:27,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:30:27,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:30:27,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:30:27,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:30:27,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:30:27,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:30:27,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:30:27,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:30:27,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:30:27,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:30:27,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:30:27,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:30:27,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:30:27,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:30:27,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:30:27,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:30:27,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:30:27,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:30:27,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:30:27,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:30:27,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:30:27,609 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:30:27,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:30:27,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:30:27,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:30:27,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:30:27,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:30:27,612 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:30:27,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:30:27,612 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:30:27,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:30:27,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:30:27,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:30:27,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:30:27,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:30:27,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:30:27,614 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:30:27,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:30:27,614 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:30:27,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:30:27,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:30:27,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:30:27,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:30:27,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:30:27,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:30:27,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:30:27,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:30:27,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:30:27,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:30:27,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:30:27,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:30:27,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:30:27,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:30:27,618 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_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e [2021-10-21 20:30:27,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:30:27,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:30:27,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:30:27,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:30:27,965 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:30:27,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-10-21 20:30:28,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/data/8655dcbb7/13536047988f4945b3a13766e4dc64de/FLAG5dfa66cdb [2021-10-21 20:30:28,738 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:30:28,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-10-21 20:30:28,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/data/8655dcbb7/13536047988f4945b3a13766e4dc64de/FLAG5dfa66cdb [2021-10-21 20:30:29,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/data/8655dcbb7/13536047988f4945b3a13766e4dc64de [2021-10-21 20:30:29,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:30:29,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:30:29,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:30:29,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:30:29,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:30:29,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3005b0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29, skipping insertion in model container [2021-10-21 20:30:29,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:30:29,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:30:29,621 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_66a8061d-3b45-49cd-8804-56b3e01a39fa/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2021-10-21 20:30:29,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:30:29,654 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:30:29,776 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_66a8061d-3b45-49cd-8804-56b3e01a39fa/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2021-10-21 20:30:29,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:30:29,826 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:30:29,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29 WrapperNode [2021-10-21 20:30:29,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:30:29,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:30:29,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:30:29,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:30:29,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:30:29,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:30:29,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:30:29,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:30:29,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:30:29,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:30:29,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:30:29,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:30:29,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:30:30,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:30,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:30:30,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:30:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:30:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:30:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:30:30,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:30:31,242 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:30:31,243 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-10-21 20:30:31,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:30:31 BoogieIcfgContainer [2021-10-21 20:30:31,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:30:31,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:30:31,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:30:31,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:30:31,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:30:29" (1/3) ... [2021-10-21 20:30:31,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec2f227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:30:31, skipping insertion in model container [2021-10-21 20:30:31,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29" (2/3) ... [2021-10-21 20:30:31,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec2f227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:30:31, skipping insertion in model container [2021-10-21 20:30:31,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:30:31" (3/3) ... [2021-10-21 20:30:31,260 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2021-10-21 20:30:31,267 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:30:31,267 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-21 20:30:31,341 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:30:31,352 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:30:31,352 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-21 20:30:31,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 90 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 20:30:31,387 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:31,388 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:31,388 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:31,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1607383533, now seen corresponding path program 1 times [2021-10-21 20:30:31,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:31,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479604326] [2021-10-21 20:30:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:31,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:31,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:31,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479604326] [2021-10-21 20:30:31,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479604326] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:31,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:31,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:30:31,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522910914] [2021-10-21 20:30:31,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:30:31,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:31,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:30:31,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:30:31,786 INFO L87 Difference]: Start difference. First operand has 91 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 90 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:31,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:31,842 INFO L93 Difference]: Finished difference Result 175 states and 264 transitions. [2021-10-21 20:30:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:30:31,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-21 20:30:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:31,857 INFO L225 Difference]: With dead ends: 175 [2021-10-21 20:30:31,858 INFO L226 Difference]: Without dead ends: 87 [2021-10-21 20:30:31,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:30:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-21 20:30:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-21 20:30:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.4761904761904763) 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) [2021-10-21 20:30:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-10-21 20:30:31,931 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2021-10-21 20:30:31,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:31,933 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-10-21 20:30:31,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-10-21 20:30:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 20:30:31,936 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:31,936 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:31,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:30:31,937 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:31,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:31,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1734754371, now seen corresponding path program 1 times [2021-10-21 20:30:31,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:31,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930006802] [2021-10-21 20:30:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:31,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:32,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:32,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930006802] [2021-10-21 20:30:32,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930006802] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:32,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:32,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:30:32,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387978645] [2021-10-21 20:30:32,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:30:32,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:30:32,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:32,116 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:32,128 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2021-10-21 20:30:32,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:30:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-21 20:30:32,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:32,130 INFO L225 Difference]: With dead ends: 87 [2021-10-21 20:30:32,130 INFO L226 Difference]: Without dead ends: 39 [2021-10-21 20:30:32,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-21 20:30:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-21 20:30:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 38 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2021-10-21 20:30:32,138 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2021-10-21 20:30:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:32,138 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2021-10-21 20:30:32,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-10-21 20:30:32,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:30:32,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:32,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:32,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:30:32,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:32,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1107356745, now seen corresponding path program 1 times [2021-10-21 20:30:32,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:32,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151144081] [2021-10-21 20:30:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:32,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:32,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:32,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151144081] [2021-10-21 20:30:32,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151144081] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:32,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:32,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:30:32,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120320142] [2021-10-21 20:30:32,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:30:32,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:30:32,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:32,236 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:32,260 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2021-10-21 20:30:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:30:32,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-21 20:30:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:32,262 INFO L225 Difference]: With dead ends: 71 [2021-10-21 20:30:32,262 INFO L226 Difference]: Without dead ends: 39 [2021-10-21 20:30:32,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:32,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-21 20:30:32,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-21 20:30:32,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-10-21 20:30:32,270 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2021-10-21 20:30:32,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:32,271 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-10-21 20:30:32,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-10-21 20:30:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 20:30:32,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:32,273 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:32,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:30:32,274 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:32,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1414852999, now seen corresponding path program 1 times [2021-10-21 20:30:32,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:32,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284917007] [2021-10-21 20:30:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:32,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:32,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284917007] [2021-10-21 20:30:32,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284917007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:32,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:32,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:30:32,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113269689] [2021-10-21 20:30:32,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:30:32,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:32,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:30:32,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:32,434 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:32,477 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2021-10-21 20:30:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:30:32,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-21 20:30:32,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:32,479 INFO L225 Difference]: With dead ends: 93 [2021-10-21 20:30:32,479 INFO L226 Difference]: Without dead ends: 61 [2021-10-21 20:30:32,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:32,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-21 20:30:32,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2021-10-21 20:30:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2021-10-21 20:30:32,493 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2021-10-21 20:30:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:32,494 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2021-10-21 20:30:32,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2021-10-21 20:30:32,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-21 20:30:32,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:32,498 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:32,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 20:30:32,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:32,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:32,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1390046811, now seen corresponding path program 1 times [2021-10-21 20:30:32,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:32,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196589733] [2021-10-21 20:30:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:32,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:32,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196589733] [2021-10-21 20:30:32,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196589733] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:32,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:32,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:30:32,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033260596] [2021-10-21 20:30:32,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:32,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:32,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:32,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:32,659 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand has 5 states, 5 states have (on average 6.2) 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) [2021-10-21 20:30:32,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:32,784 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2021-10-21 20:30:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:30:32,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) 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 [2021-10-21 20:30:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:32,791 INFO L225 Difference]: With dead ends: 271 [2021-10-21 20:30:32,791 INFO L226 Difference]: Without dead ends: 219 [2021-10-21 20:30:32,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 39.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:30:32,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-21 20:30:32,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2021-10-21 20:30:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.411764705882353) internal successors, (144), 102 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2021-10-21 20:30:32,819 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2021-10-21 20:30:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:32,820 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2021-10-21 20:30:32,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) 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) [2021-10-21 20:30:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2021-10-21 20:30:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-21 20:30:32,826 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:32,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:32,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:30:32,828 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:32,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:32,829 INFO L82 PathProgramCache]: Analyzing trace with hash 272516125, now seen corresponding path program 1 times [2021-10-21 20:30:32,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:32,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335601789] [2021-10-21 20:30:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:32,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:32,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335601789] [2021-10-21 20:30:32,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335601789] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:32,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:32,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:30:32,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288082603] [2021-10-21 20:30:32,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:32,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:32,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:32,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:32,938 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:33,041 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2021-10-21 20:30:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:30:33,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2021-10-21 20:30:33,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:33,051 INFO L225 Difference]: With dead ends: 376 [2021-10-21 20:30:33,051 INFO L226 Difference]: Without dead ends: 280 [2021-10-21 20:30:33,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 38.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:30:33,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-21 20:30:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2021-10-21 20:30:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.396039603960396) internal successors, (141), 101 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2021-10-21 20:30:33,081 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2021-10-21 20:30:33,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:33,083 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2021-10-21 20:30:33,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2021-10-21 20:30:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-21 20:30:33,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:33,088 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:33,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 20:30:33,088 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:33,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:33,089 INFO L82 PathProgramCache]: Analyzing trace with hash -824557763, now seen corresponding path program 1 times [2021-10-21 20:30:33,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:33,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103204331] [2021-10-21 20:30:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:33,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:33,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:33,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103204331] [2021-10-21 20:30:33,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103204331] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:33,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:33,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:30:33,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519588868] [2021-10-21 20:30:33,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:33,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:33,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:33,178 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:33,258 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2021-10-21 20:30:33,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:30:33,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-10-21 20:30:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:33,260 INFO L225 Difference]: With dead ends: 273 [2021-10-21 20:30:33,260 INFO L226 Difference]: Without dead ends: 178 [2021-10-21 20:30:33,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:30:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-10-21 20:30:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2021-10-21 20:30:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2021-10-21 20:30:33,289 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2021-10-21 20:30:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:33,290 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2021-10-21 20:30:33,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2021-10-21 20:30:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-21 20:30:33,293 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:33,293 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:33,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 20:30:33,294 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:33,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:33,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1835675013, now seen corresponding path program 1 times [2021-10-21 20:30:33,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:33,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671255383] [2021-10-21 20:30:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:33,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:33,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:33,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671255383] [2021-10-21 20:30:33,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671255383] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:33,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:33,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:30:33,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414361289] [2021-10-21 20:30:33,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:33,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:33,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:33,384 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:33,460 INFO L93 Difference]: Finished difference Result 291 states and 395 transitions. [2021-10-21 20:30:33,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:30:33,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-10-21 20:30:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:33,462 INFO L225 Difference]: With dead ends: 291 [2021-10-21 20:30:33,462 INFO L226 Difference]: Without dead ends: 190 [2021-10-21 20:30:33,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:30:33,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-21 20:30:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 112. [2021-10-21 20:30:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 111 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2021-10-21 20:30:33,481 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2021-10-21 20:30:33,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:33,482 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2021-10-21 20:30:33,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,482 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2021-10-21 20:30:33,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-21 20:30:33,483 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:33,483 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:33,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 20:30:33,484 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:33,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:33,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1438223929, now seen corresponding path program 1 times [2021-10-21 20:30:33,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:33,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291831531] [2021-10-21 20:30:33,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:33,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:33,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:33,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291831531] [2021-10-21 20:30:33,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291831531] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:33,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:33,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:30:33,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140688866] [2021-10-21 20:30:33,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:30:33,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:30:33,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:33,576 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:33,616 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2021-10-21 20:30:33,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:30:33,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2021-10-21 20:30:33,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:33,618 INFO L225 Difference]: With dead ends: 265 [2021-10-21 20:30:33,618 INFO L226 Difference]: Without dead ends: 160 [2021-10-21 20:30:33,619 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-21 20:30:33,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-21 20:30:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.3144654088050314) internal successors, (209), 159 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2021-10-21 20:30:33,641 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 35 [2021-10-21 20:30:33,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:33,643 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2021-10-21 20:30:33,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2021-10-21 20:30:33,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-21 20:30:33,645 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:33,645 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:33,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 20:30:33,646 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:33,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1113565433, now seen corresponding path program 1 times [2021-10-21 20:30:33,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:33,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387558129] [2021-10-21 20:30:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:33,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:33,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:33,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387558129] [2021-10-21 20:30:33,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387558129] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:33,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:33,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 20:30:33,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359791844] [2021-10-21 20:30:33,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:30:33,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:33,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:30:33,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:30:33,764 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:34,370 INFO L93 Difference]: Finished difference Result 780 states and 1018 transitions. [2021-10-21 20:30:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-21 20:30:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 36 [2021-10-21 20:30:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:34,378 INFO L225 Difference]: With dead ends: 780 [2021-10-21 20:30:34,378 INFO L226 Difference]: Without dead ends: 627 [2021-10-21 20:30:34,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 199.8ms TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2021-10-21 20:30:34,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-10-21 20:30:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 160. [2021-10-21 20:30:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.2893081761006289) internal successors, (205), 159 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 205 transitions. [2021-10-21 20:30:34,414 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 205 transitions. Word has length 36 [2021-10-21 20:30:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:34,415 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 205 transitions. [2021-10-21 20:30:34,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 205 transitions. [2021-10-21 20:30:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-21 20:30:34,417 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:34,417 INFO L512 BasicCegarLoop]: trace histogram [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, 1] [2021-10-21 20:30:34,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 20:30:34,418 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:34,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:34,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1527108990, now seen corresponding path program 1 times [2021-10-21 20:30:34,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:34,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8722295] [2021-10-21 20:30:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:34,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:34,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:34,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8722295] [2021-10-21 20:30:34,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8722295] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:34,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:34,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:30:34,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261185082] [2021-10-21 20:30:34,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:30:34,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:34,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:30:34,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:34,503 INFO L87 Difference]: Start difference. First operand 160 states and 205 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:34,545 INFO L93 Difference]: Finished difference Result 233 states and 301 transitions. [2021-10-21 20:30:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:30:34,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 [2021-10-21 20:30:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:34,549 INFO L225 Difference]: With dead ends: 233 [2021-10-21 20:30:34,549 INFO L226 Difference]: Without dead ends: 231 [2021-10-21 20:30:34,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:30:34,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-21 20:30:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 180. [2021-10-21 20:30:34,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.312849162011173) internal successors, (235), 179 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:34,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2021-10-21 20:30:34,574 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 235 transitions. Word has length 51 [2021-10-21 20:30:34,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:34,574 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 235 transitions. [2021-10-21 20:30:34,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:34,575 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 235 transitions. [2021-10-21 20:30:34,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-21 20:30:34,576 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:34,576 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 20:30:34,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 20:30:34,576 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:30:34,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:34,577 INFO L82 PathProgramCache]: Analyzing trace with hash 338659975, now seen corresponding path program 1 times [2021-10-21 20:30:34,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:34,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711339394] [2021-10-21 20:30:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:34,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:30:34,664 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:30:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:30:34,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:30:34,833 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:30:34,834 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:30:34,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:30:34,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:30:34,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 20:30:34,844 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:30:35,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:30:35 BoogieIcfgContainer [2021-10-21 20:30:35,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:30:35,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:30:35,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:30:35,028 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:30:35,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:30:31" (3/4) ... [2021-10-21 20:30:35,031 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 20:30:35,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:30:35,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:30:35,178 INFO L168 Benchmark]: Toolchain (without parser) took 6122.97 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 86.0 MB in the beginning and 82.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 50.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:35,179 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 121.6 MB. Free memory was 103.3 MB in the beginning and 103.3 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:30:35,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.57 ms. Allocated memory is still 121.6 MB. Free memory was 85.8 MB in the beginning and 91.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:35,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.93 ms. Allocated memory is still 121.6 MB. Free memory was 91.2 MB in the beginning and 87.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:35,180 INFO L168 Benchmark]: Boogie Preprocessor took 59.81 ms. Allocated memory is still 121.6 MB. Free memory was 87.9 MB in the beginning and 85.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:35,181 INFO L168 Benchmark]: RCFGBuilder took 1266.03 ms. Allocated memory is still 121.6 MB. Free memory was 85.8 MB in the beginning and 94.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:35,181 INFO L168 Benchmark]: TraceAbstraction took 3779.13 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 93.8 MB in the beginning and 109.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 80.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:35,181 INFO L168 Benchmark]: Witness Printer took 148.14 ms. Allocated memory is still 169.9 MB. Free memory was 109.9 MB in the beginning and 82.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:35,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 121.6 MB. Free memory was 103.3 MB in the beginning and 103.3 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 770.57 ms. Allocated memory is still 121.6 MB. Free memory was 85.8 MB in the beginning and 91.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.93 ms. Allocated memory is still 121.6 MB. Free memory was 91.2 MB in the beginning and 87.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.81 ms. Allocated memory is still 121.6 MB. Free memory was 87.9 MB in the beginning and 85.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1266.03 ms. Allocated memory is still 121.6 MB. Free memory was 85.8 MB in the beginning and 94.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3779.13 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 93.8 MB in the beginning and 109.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 80.6 MB. Max. memory is 16.1 GB. * Witness Printer took 148.14 ms. Allocated memory is still 169.9 MB. Free memory was 109.9 MB in the beginning and 82.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 854]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L496] int pumpRunning = 0; [L497] int systemActive = 1; [L676] int methAndRunningLastTime ; [L753] int cleanupTimeShifts = 4; [L860] int waterLevel = 1; [L861] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int retValue_acc ; [L828] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L744] int retValue_acc ; [L747] retValue_acc = 1 [L748] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L681] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] COND TRUE waterLevel < 2 [L879] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L504] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L511] COND TRUE \read(systemActive) [L533] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L536] COND TRUE ! pumpRunning [L648] int retValue_acc ; [L649] int tmp ; [L650] int tmp___0 ; [L940] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L943] COND FALSE !(waterLevel < 2) [L947] retValue_acc = 0 [L948] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp = isHighWaterSensorDry() [L656] COND FALSE !(\read(tmp)) [L659] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L661] retValue_acc = tmp___0 [L662] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L538] tmp = isHighWaterLevel() [L540] COND TRUE \read(tmp) [L567] int tmp ; [L592] int retValue_acc ; [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] retValue_acc = isMethaneLevelCritical() [L598] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] tmp = isMethaneAlarm() [L573] COND FALSE !(\read(tmp)) [L561] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L686] int tmp ; [L687] int tmp___0 ; [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] tmp = isMethaneLevelCritical() [L693] COND FALSE !(\read(tmp)) [L709] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] COND FALSE !(\read(methaneLevelCritical)) [L893] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L504] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L511] COND TRUE \read(systemActive) [L533] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L536] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L686] int tmp ; [L687] int tmp___0 ; [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L698] COND FALSE !(\read(methAndRunningLastTime)) [L703] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L504] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L511] COND TRUE \read(systemActive) [L533] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L536] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int tmp ; [L687] int tmp___0 ; [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L698] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L854] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 854]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3503.3ms, OverallIterations: 12, TraceHistogramMax: 3, EmptinessCheckTime: 38.1ms, AutomataDifference: 1319.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 863 SDtfs, 1215 SDslu, 1620 SDs, 0 SdLazy, 232 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 431.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 343.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=11, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 255.7ms AutomataMinimizationTime, 11 MinimizatonAttempts, 962 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 88.7ms SsaConstructionTime, 544.0ms SatisfiabilityAnalysisTime, 726.6ms InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:30:35,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a8061d-3b45-49cd-8804-56b3e01a39fa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...